Infiniti G35 Coupe V35 (2003) Service Manual – Audio, Visual & Navigation System & Telephone System

AUDIO VISUAL, NAVIGATION & TELEPHONE SYSTEM

K ELECTRICAL

A

B

SECTION AV

AUDIO VISUAL, NAVIGATION & TELEPHONE SYS-

PRECAUTIONS .......................................................... 3

Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-

SIONER” .................................................................. 3

Precautions for Battery Service ................................ 3

Wiring Diagrams and Trouble Diagnosis .................. 3

PREPARATIO N ................. .................... ...................... 4

Commercial Service Tools ........................................ 4

AUDIO ......................... .......................... ...................... 5

System Description .................................................. 5

BASE SYSTEM ..................................................... 5

BOSE SYSTEM .................................................... 5

SPEED SENSITIVE VOLUME SYSTE M .............. 6

Schematic ................................................................ 7

BASE SYSTEM ..................................................... 7

BOSE SYSTEM .................................................... 8

Wiring Diagram -AUDIO- .......................................... 9

BASE SYSTEM ..................................................... 9

BOSE SYSTEM .................................................. 13

Terminals and Reference Value for Audio Unit for

Base System .......................................................... 18

Terminals and Reference Value for Audio Unit for

BOSE System ................................................. ....... 19

T erminals and Reference V alue for BOSE Speaker

Amp. ......................... .............................................. 20

Steering Wheel Audio Control Switch Resistance

Check ..................................................................... 22

Self-Diagnosis Function for A/C and Audio Control-

ler ........................................................................... 22

DIAGNOSIS ITEM ............................................... 23

OPERATION PROCEDURE ............................... 23

MODE 1 .............................................................. 24

MODE 2 .............................................................. 24

MODE 3 .............................................................. 25

MODE 4 .............................................................. 26

Trouble Diagnosis .................................................. 27

PROBLEM WITH RADIO, TAPE AND CD .......... 27

FOR RADIO ONLY .............................................. 27

FOR CASSETTE PLAYER ONLY ....................... 28

FOR CD ONLY .................................................... 29

CONTENTS

Noise Inspection .....................................................29

TYPE OF NOISE AND POSSIBLE CAUSE ........29

Power Supply Circuit Inspection .............................30

Audio System Does Not Turn On ...........................31

Steering Wheel Audio Control Switch Does Not

Operate ........................ ...... ....... ...... ....... ...... ....... .... 31

Speed Sensitive Volume System Does Not Work ...32
Locking CD Auto-Changer Mechanism (Audio Unit

of BOSE System) ................................................... 33

DAMPER LOCK PROCEDURE ..........................33

Removal and Installation for Audio Unit ................. 33

Removal and Installation for A/C and Audio Con-

troller ............................................................ ....... .... 34

REMOVAL ........................................................... 34

INSTALLATION ...................................................34

Disassembly and Assembly of A/C and Audio Con-

troller ............................................................ ....... .... 35

Removal and Installation of Door Speaker (Base

System) ..................................................................36

REMOVAL ........................................................... 36

INSTALLATION ...................................................36

Removal and Installation of Door Speaker (BOSE

System) ..................................................................36

RERMOVAL .........................................................36

INSTALLATION ...................................................36

Removal and Installation of Tweeter Behind Door

mirror ......................................................................36

REMOVAL ........................................................... 36

INSTALLATION ...................................................37

Removal and Installation of Rear Side Speaker .....37

REMOVAL ........................................................... 37

INSTALLATION ...................................................37

Removal and Installation of Woofer ........................37

REMOVAL ........................................................... 37

INSTALLATION ...................................................37

Removal and Installation of BOSE Speaker Amp. ...37

REMOVAL ........................................................... 37

INSTALLATION ...................................................38

AUDIO ANTENNA .................................................... 39

System Description .................................................39

C

TEM

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-1

Wiring Diagram -W/ANT- ........................................40

Location of Antenna ................................................41

Window Antenna Repair .........................................41

ELEMENT CHECK ..............................................41

ELEMENT REPAIR .............................................42

NAVIGATION SYSTEM .............................................43

System Description .................................................43

TRAVEL DISTANCE ............................................43

TRAVEL DIRECTION ..........................................43

MAP-MATCHING .................................................43

GPS (GLOBAL POSITIONING SYSTEM) ..........44

COMPONENT DESCRIPTION ............................45

BIRD VIEW™ ......................................................46

MAP DISPLAY .....................................................47

FUNCTION OF NAVI SWITCH ............................47

“VIEW” MODE .....................................................52

“HEADING” MODE ..............................................52

“NEARBY DISPLAY ICONS” MODE ...................53

“SAVE CURRENT LOCATION” MODE ...............53

“ADJUST CURRENT LOCATION” MODE ...........53

“AUTO RE-ROUTE” MODE .................................54

“AVOID AREA SETTING” MODE ........................54

“BUTTON TONE/BEEP RESPONSE” MODE .....54

“CLEAR MEMORY” MODE .................................54

“EDIT ADDRESS BOOK” MODE ........................55

“GPS INFORMATION” MODE .............................55

“QUICK STOP CUSTOMER SETTING” MODE ...55

“SET AVERAGE SPEED” MODE ........................55

“TRACKING” MODE ............................................56

GUIDE VOLUME SETTING ................................56

TRIP COMPUTER INFORMATION .....................56

FUEL ECONOMY INFORMATION ......................56

MAINTENANCE INFORMATION .........................57

WARNING INDICATIONS ...................................57

Precautions for NAVI Control Unit Replacement ....59

Component Parts Location .....................................60

Schematic ................. ..............................................61

Wiring Diagram —NAVI— .......................................62

Wiring Diagram —COMM— ...................................66

Terminals and Reference Value for NAVI Control

unit ...................... ....................................................68

Terminals and Reference Value for Display Unit ....70

Terminals and Reference Value for NAVI Switch ....72

Self-Diagnosis Function ..........................................73

DESCRIPTION ....................................................73

DIAGNOSIS ITEM ...............................................73

Self-Diagnosis Mode ..............................................74

OPERATION PROCEDURE ................................74

SELF–DIAGNOSIS RESULT ...............................75

CONFIRMATION/ADJUSTMENT Mode .................76

OPERATION PROCEDURE ................................76

DISPLAY DIAGNOSIS .........................................77

VEHICLE SIGNALS .............................................78

NAVIGATION .......................................................78

HISTORY OF ERRORS .................. ....................79

DIAGNOSIS BY HISTORY OF ERRORS ............79

Power Supply and Ground Circuit Check for NAVI

Control Unit .............................................................82

Power Supply and Ground Circuit Check for Display

Unit and NAVI Switch ..............................................83

Vehicle Speed Signal Check ...................................84

Illumination Signal Check ........................................85

Ignition Signal Check ..............................................86

Reverse Signal Check(With A/T) ............................86

Reverse Signal Check(With M/T) ............................86

RGB Screen Is Not Shown .....................................87

Color of RGB Image Is Not Proper (bluish) .............88

Color of RGB Image Is Not Proper (reddish) ..........89

Color of RGB Image Is Not Proper (yellowish) .......90

RGB Screen Is Rolling ............................................91

Guide Sound Is Not Heard ......................................92

Beep at Start-Up, No Display Appears on Screen. ...94

Display Quality Control Cannot Change Screen .....96

No Fuel Information Is Displayed ............................96

Vehicle Condition Setting Is Not Possible. ..............97

No Warning Message Is Displayed (Combination

Meter Of Warning Lamp Illuminate) ........................97

Navigation System does not activate ......................97

Previous Conditions Are Not Stored. ......................97

The Position of The Current-Location Mark Is Not

Correct. ...................................................................98

Radio Wave From The GPS Satellite Is Not

Received. ..................... ...........................................98

Driving Test .............................................................98

Example of Symptoms Judged Not Malfunction .....99

BASIC OPERATION ............................................99

VEHICLE MARK ................................................100

DESTINATION, P ASSING POINTS, AND MENU

ITEMS CANNOT BE SELECTED/SET. .............100

VOICE GUIDE .......................................... ....... ..101

ROUTE SEARCHING ........................................101

EXAMPLES OF CURRENT-LOCATION MARK

DISPLACEMENT ................... ............................102

THE CURRENT POSITION MARK SHOWS A
POSITION WHICH IS COMPLETEL Y WRONG . .105

THE CURRENT POSITION MARK JUMPS. .....105

THE CURRENT LOCATION MARK IS IN A

RIVER OR THE SEA. ........................................106

WHEN DRIVING ON THE SA ME ROAD, SOME­TIMES THE CURRENT-LOCA TION MARK IS IN
THE RIGHT PLACE AND SOMETIMES IT IS THE

WRONG PLACE. ...............................................106

LOCATION CORRECTION BY MAP MATCHING

IS SLOW. ...........................................................106

AL THOUGH THE GPS RECEIVING DI SPLAY IS
GREEN, THE VEHICLE MARK DOES NOT

RETURN TO THE CORRECT LOCATION. .......106

THE NAME OF THE CURRENT PLACE IS NOT

DISPLAYED. ......................................................106

CONTENTS OF THE DISPLAY DIFFER FOR
THE BIRD VIEW™ AND THE (FL AT) MAP

SCREEN ................... .........................................106

Program Loading ..................................................107

Removal and Installation of NAVI control unit .......108

Removal and Installation of GPS Antenna ............108

Removal and Installation of NAVI Switch ..............109

Removal and Installation of Display Unit ..............109

Disassembly and Assembly of Display Unit ..........109

Revision; 2004 April 2003 G35 Coupe

AV-2

PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

AKS004D5

A

The Supplemental Rest raint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to redu ce th e risk or se verit y o f inju ry to the d river a nd fro nt passen ger fo r certain
types of collision. This system includes seat belt switch inpu ts and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man­ual.

WARNING:

● To avoid rendering the SRS inopera tive, which c ould increa se the risk of perso nal injury or dea th

in the event of a collision which would result in air bag inflation, all maintenance must be per­formed by an authorized NISSAN/INFINITI dealer.

● Improper maintenance, inc luding incorrect removal and installation of the SRS, can lead to per-

sonal injury cause d by unintentional ac tiv atio n o f the s ys tem . For removal of Spi ral Cab le and Air
Bag Module, see the SRS sec tion.

● Do not use electrical test equ ipment o n any circu it related to the SRS unless in structed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions for Battery Service AKS004CA

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer­ence between t h e wi nd ow ed ge an d th e v eh ic le wh en the do or is ope ne d/ cl o sed. Dur i n g nor ma l op era ti on, t he
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

Wiring Diagrams and Trouble Diagnosis AKS003G0

B

C

D

E

F

G

H

I

When you read wiring diagrams, refer to the following:

● Refer toGI-15, "How to Read Wiring Diagrams" .

Refer to PG-4, "

When you perform trouble dia gnosis, refer to the following:

● Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .

Refer to GI-27, "

POWER SUPPL Y ROUTING CIRCUIT" .

How to Perform Efficient Diagnosis for an Electrical Incident" .

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-3

PREPARATION

PREPARATION PFP:00002 Commercial Service Tools AKS003G1

Tool name Description

Loosening bolts and nuts

Power tool

PBIC0191E

Revision; 2004 April 2003 G35 Coupe

AV-4

AUDIO

AUDIO PFP:28111

System Description AKS003G2

BASE SYSTEM

Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

● through 15A fuse [No. 37, located in the fuse and fusible link box]

● to audio unit terminal 6.

With the ignition switch in the ACC or ON position, power is supplied

● through 10A fuse [No. 6, located in the fuse block (J/B)]

● to audio unit terminal 10.

Ground is supplied through the case of the audio unit.
Audio unit and A/C and audio controller are connected by FPC (Fl exible Print Ci rcuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audi o control ler is push ed to au dio switc h, it se nds audi o signal to audi o unit. The n audio si g­nals are supplied

● through audi o unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

● to terminals 1 and 2 of driver door speaker and passenger door speaker

● to terminals 1 and 2 of rear spea ker LH and RH

● to terminals 1 and 2 of tweeter driver side and passenger side.

When one of stee rin g w h ee l a ud io control switches is pu sh ed to vo lum e up, seek up, or mode ON, resistanc e
in steering switch circuit changes depending on which button is pushed. This will change voltage. Power is
supplied

● from audio unit terminal 22

● through combination switch (spiral cable) terminal 24 and 20

● to steering wheel audio control switch.

Ground is suppl ied

● from steering wheel audio control switch

● through combination switch (spiral cable) terminal 17 and 31

● to audio unit terminal 25.

When one of steering wheel audio cont rol switches is pushed to volume down, seek down, or power ON,
resistance in steerin g switch circuit ch anges depend ing on which butto n is pushed. This will change voltage.
Power is supplied

● from audio unit terminal 23

● through combination switch (spiral cable) terminal 32 and 16

● to steering wheel audio control switch.

Ground is suppl ied

● from steering wheel audio control switch

● through combination switch (spiral cable) terminal 17 and 31

● to audio unit terminal 25.

A

B

C

D

E

F

G

H

I

J

AV

L

M

BOSE SYSTEM

Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

● through 15A fuse [No. 37, located in the fuse and fusible link box]

● to audio unit t erminal 6, and

● to BOSE speaker amp. terminal 1.

With the ignition switch in the ACC or ON position, power is supplied

● through 10A fuse [No. 6, located in the fuse block (J/B)]

● to audio unit terminal 10.

Ground is supplied through the case of the audio unit.
Ground is also supp li ed

Revision; 2004 April 2003 G35 Coupe

AV-5

AUDIO

● to BOSE speaker amp. terminal 17

● through body ground B5 and B29.

Audio unit and A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio contro ll er is pu sh ed to audio switch, it send audi o sig na l to au dio unit.
Then audio signals are supplied

● through a u dio unit terminals 1, 2, 3, 4, 13, 14, 15, and 1 6

● to BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29, and 30.

Audio signals are amplified by the BOSE speaker amp.
The amplified audio signals are supplied

● through BO SE speaker amp. terminals 2, 3, 9, 10, 11, 12, 13, 14, 15,16, 18 and 19

● to terminals 1 and 2 of driver door speaker and passenger door speaker

● to terminals 1 and 2 of rear speaker LH and RH

● to terminals 1 and 2 of tweeter driver side and passenger side

● to terminals 1 and 2 of woofer LH and RH.

When one of steering wheel audio control switches is pushed to volume up, seek up, or mode ON, resistance
in steering swi tch circuit changes depending on which b utton is pushed. This w ill change voltage. Powe r is
supplied

● from audio unit terminal 22

● through combination switch (spiral cable) terminal 24 and 20

● to steering wheel audio control switch.

Ground is supplied

● from steer ing wheel audio control switch

● through combination switch (spiral cable) terminal 17 and 31

● to audio unit terminal 25.

When one of steering wheel audio control switches is pushed to volume down, seek down, or power ON,
resistance in steering switch circuit changes depending on which button is pushed. This will change voltage.
Power is supp lied

● from audio unit terminal 23

● through combination switch (spiral cable) terminal 32 and 16

● to steering wheel audio control switch.

Ground is supplied

● from steer ing wheel audio control switch

● through combination switch (spiral cable) terminal 17 and 31

● to audio unit terminal 25.

SPEED SENSITIVE VOLUME SYSTEM

Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the con­trol level can be selected by the customer. This system is equipped for BOSE system.

Revision; 2004 April 2003 G35 Coupe

AV-6

AUDIO

Schematic AKS003G3

BASE SYSTEM

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWM0830E

Revision; 2004 April 2003 G35 Coupe

AV-7

BOSE SYSTEM

AUDIO

TKWM0834E

Revision; 2004 April 2003 G35 Coupe

AV-8

AUDIO

Wiring Diagram -AUDIO- AKS003G4

BASE SYSTEM

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWM0831E

Revision; 2004 April 2003 G35 Coupe

AV-9

AUDIO

TKWT0641E

Revision; 2004 April 2003 G35 Coupe

AV-10

AUDIO

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWM0832E

Revision; 2004 April 2003 G35 Coupe

AV-11

AUDIO

TKWM0833E

Revision; 2004 April 2003 G35 Coupe

AV-12

BOSE SYSTEM

AUDIO

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWM0835E

Revision; 2004 April 2003 G35 Coupe

AV-13

AUDIO

TKWM0836E

Revision; 2004 April 2003 G35 Coupe

AV-14

AUDIO

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWM0837E

Revision; 2004 April 2003 G35 Coupe

AV-15

AUDIO

TKWM0838E

Revision; 2004 April 2003 G35 Coupe

AV-16

AUDIO

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWM0839E

Revision; 2004 April 2003 G35 Coupe

AV-17

AUDIO

Terminals and Reference Value for Audio Unit for Base System AKS003G5

Terminal

(Wire color)

+–

*1

1 (B/W)

(B)

2 (L)

(W)

3 (B/R)

(R)

4 (BR)

(G)

Ground

*2

*1

Ground

*2

*1

Ground

*2

*1

Ground

*2

5 (G/W) Ground

Item

Audio sound
signal front
LH (–)

Audio sound
signal front
LH (+)

Audio sound
signal front
RH (–)

Audio sound
signal front
RH (+)

Antenna
signal

Signal

input/

output

Output ON

Output ON

output ON – More than approx.10V

Ignition

switch

Condition

Reference value

Operation

Receive audio
signal

Receive audio
signal

6 (Y) Ground Battery Input – – Battery voltage

Lighting switch

8 (R/L) Ground

Lighting
switch

Input ON

ON (1st posi­tion)

Lighting switch
OFF

Battery voltage

Approx.0V

Example of symp-

tom

No sound from
driver door
speaker or tweeter
driver side.

SKIA0177E

No sound from
passenger door
speaker or tweeter
passenger side.

SKIA0177E

System does not
work properly.

System will not
work properly.

Audio unit illumi­nation does not
function when
lighting switch is
ON (position 1).

10 (LG) Ground ACC signal Input ON

13 (B/Y)

(Y)

14 (LG)
(BR)

15 (B/P)
(P)

16 (OR)
(L)

*1

Ground

*2

*1

Ground

*2

*1

Ground

*2

*1

Ground

*2

22 (R) Ground

Audio sound
signal rear
LH (–)

Audio sound
signal rear
LH (+)

Audio sound
signal rear
RH (–)

Audio sound
signal rear
RH (+)

Remote con­trol A

Output ON

Output ON

Input ON

Ignition switch
ACC or ON

Receive audio
signal

Receive audio
signal

Press MODE

switch

Press SEEK

UP switch

Press VOL UP

switch

Except for

above

Battery voltage

Approx. 0V

Approx.1.7V

Approx.3.3V

Approx.5V

System does not
work properly.

No sound from
rear speaker LH.

SKIA0177E

No sound from
rear speaker RH.

SKIA0177E

Steering wheel
audio controls do
not function.

Revision; 2004 April 2003 G35 Coupe

AV-18

AUDIO

Terminal

(Wire color)

+–

23 (G) Ground

25 (Y) –

● *1:With A/T without navigation system and m i rr or def ogger for U.S. A.

● *2: Except *1.

Item

Remote con­trol B

Remote con­trol ground

Signal

input/

output

Input ON

–ON – –

Ignition

switch

Condition

Operation

Press POWER

switch

Press SEEK

DOWN switch

Press VOL

DOWN switch

Except for

above

Reference value

Approx.0V

Approx.1.7V

Approx.3.3V

Approx.5V

Example of symp-

tom

Steering whee l
audio controls do
not function.

Steering whee l
audio controls do
not function.

Terminals and Reference Value for Audio Unit for BOSE System AKS003G6

Terminal

(Wire color)
+–

1 (B) Gr ound

2 (W) Ground

3 (R) Ground

4 (G) Ground

5 (G/W) Ground

6 (Y) Ground Battery power – – – Battery voltage

8 (R/L) Ground Light switch Input ON

9 – Shield – – – Approx.0V

10 (LG) Ground ACC signal Input ON – Battery voltage

11 – Shield – – – Approx.0V

Item

Audio sound
signal front
LH (–)

Audio sound
signal front
LH (+)

Audio sound
signal front
RH (–)

Audio sound
signal front
RH (+)

Antenna
signal

Signal

input/

output

Output ON

Output ON

Output ON – More than approx. 10V

Ignition

switch

Condition

Operation

Receive audio

signal

Receive audio

signal

Light switch ON
(1st position)

Lightin g switch
OFF

Reference value

Battery voltage

Approx.0V

Example of symp-

tom

No sound from
driver door
speaker or tweeter
driver side.

SKIA0177E

No sound from
passenger door
speaker or tweeter
passenger side.

SKIA0177E

System does not
work properly.

System will not
work properly.

Audio unit illumi­nation does not
function when
lighting switch is
ON (position 1).

Interference and
distortion heard
from speakers.

System does not
work properly.

Interference and
distortion heard
from speakers.

A

B

C

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-19

AUDIO

Terminal

(Wire color)
+–

12

13

(Y)

14

18

Ground

Ground

Ground

Ground

(G/Y)

(BR)

15 (P) Ground

16 (L) Ground

(W/G)

Item

Amp. ON sig­nal

Audio sound
signal rear LH
(–)

Audio sound
signal rear LH
(+)

Audio sound
signal rear
RH (–)

Audio sound
signal rear
RH (+)

Vehicle
speed signal
(2–pulse)

Signal

input/

output

Output ON – More than approx.6. 5V

Output ON

Output ON

Input ON

Ignition

switch

Condition

Reference value

Operation

Receive audio

signal

SKIA0177E

Receive audio
signal

SKIA0177E

When vehicle
speed is
approx. 40 km/h
(25 MPH)

Example of symp-

tom

Amp. does not
work properly.

No sound from
rear speaker LH.

No sound from
rear speaker RH.

Speed sensitive
volume system
does not work
properly.

SKIA0168E

22 (R) Ground

Remote con­trol A

23 (G) Ground

25 (Y) –

Remote con­trol B

Remote con­trol ground

Press MODE

switch

Press SEEK UP

Input ON

Input ON

–ON – –

switch

Press VOL UP

switch

Except for above Approx.5V

Press POWER

switch

Press SEEK

DOWN switch

Press VO L

DOWN switch

Except for above Approx.5V

Approx.0V

Approx.1.7V

Approx.3.3V

Approx.0V

Approx.1.7V

Approx.3.3V

Steering wheel
audio controls do
not function.

Steering wheel
audio controls do
not function.

Steering wheel
audio controls do
not function.

Terminals and Reference Value for BOSE Speaker Amp. AKS003G7

Terminal

(wire color)

+–
1

(Y/R)

Ground Battery Input ON – Battery voltage

Item

Signal

input/

output

Ignition

switch

Condition

Operation

Reference value

Example of

symptom

System does not
work properly.

Revision; 2004 April 2003 G35 Coupe

AV-20

AUDIO

Terminal

(wire color)
+–

2

(W/G)

(L/W)

(G/Y)

(B/Y)

12 (B) Ground

Ground Woofer LH (-)

18

Ground Woofer LH (+)

(L/Y)

3

Ground Woofer RH (–)

19

Ground Woofer RH (+)

(L/R)

9

Ground

10

Ground

11

Ground

(BR)

13 (G) Ground

14 (R) Gro und

15

Ground

(GY)

16 (Y) Ground

17

(B/R)

Ground Ground – ON – – –

Item

Rear speaker
LH (+)

Rear speaker
LH (-)

Rear speaker
RH (+)

Rear speaker
RH (-)

Driver door
speaker and
tweeter driver
side (+)

Driver door
speaker and
tweeter driver
side (-)

Passenger
door speaker
and tweeter
passenger
side (+)

Passenger
door speaker
and tweeter
passenger
side (-)

Signal

input/

output

Output ON

Output ON

Output ON

Output ON

Output ON

Output ON

Ignition

switch

Condition

Operation

Receive audio

signal

Receive audio

signal

Receive audio

signal

Receive audio

signal

Receive audio

signal

Receive audio

signal

Reference value

SKIA0177E

SKIA0177E

SKIA0177E

SKIA0177E

SKIA0177E

SKIA0177E

Example of

symptom

No sound from
woofer LH.

No sound from
woofer RH.

No sound from
rear speaker LH.

No sound from
rear speaker RH.

No sound from
driver door
speaker or tweeter
driver side.

No sound from
passenger door
speaker or tweeter
passenger side.

A

B

C

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-21

AUDIO

Terminal

(wire color)

+–

23 (P) Ground

24 (L) Ground

25

Ground

(PU)

26

Ground

(LG)

27

28

29

30

(W)

Ground

Ground

Ground

(W/L)

(OR/L)Ground

(OR)

Item

Audio sound
signal rear RH
(-)

Audio sound
signal rear RH
(+)

Audio sound
signal rear LH
(-)

Audio sound
signal rear LH
(+)

Audio sound
signal passen­ger door (-)

Audio sound
signal passen­ger door (+)

Audio sound
signal driver
door (-)

Audio sound
signal driver
door (+)

31

Ground Control Input ON – More than app rox . 6.5V

(SB)

Signal

input/

output

Input ON

Input ON

Input ON

Input ON

Ignition

switch

Condition

Operation

Receive audio

signal

Receive audio

signal

Receive audio

signal

Receive audio

signal

Reference value

Example of

symptom

No sound from
rear speaker RH.

SKIA0177E

No sound from
rear speaker LH.

SKIA0177E

No sound from
passenger door
speaker or tweeter
passenger side.

SKIA0177E

No sound from
driver door
speaker or tweeter
driver si de.

SKIA0177E

System does not
work properly.

Steering Wheel Audio Control Switch Resistance Check AKS003G8

Terminal

(+) (–)

16 17

20 17

Signal name Condition

Seek down
(previous)

Power Depress power switc h. Approx.15
Volume

(down)
Seek up

(next)
Mode Depress m ode switch. Approx.1.0
Volume (up) Depress volume up switch. Approx.700

Depress (station) down switch. Approx.177

Depress volume down switch. Approx.700

Depress (station) up switch. Approx.177

Resistance

(Ω)

SKIA1907E

Self-Diagnosis Function for A/C and Audio Controller AKS003G9

● Perform self-diagnos is for A/C and audio co ntroller, as well as audio un it, and di splay res ults on A/C and

controller displa y.

● As for mode 2-4, items are displayed with a 10-digit display.

Revision; 2004 April 2003 G35 Coupe

AV-22

AUDIO

DIAGNOSIS ITEM

MODE Diagnosis contents
MODE 1
MODE 2
MODE 3
MODE 4

OPERATION PROCEDURE

1. Within 5 seconds after turning ignition switc h from OFF to ON,
press function switches 1 and 6 sim ultaneously, and hold them
for 5 seconds or more.

2. When self-diagnosis is actuated, all segments on display are
displayed and mode 1 is active.

3. Each time AUDIO switch is pressed, diagnosis mode switches.
(MODE 2 to MODE 3 to MODE 4 to MODE 1)

4. Turn ignition switch from O N to O FF, or press fu nction swit ches
1 and 6 simultaneously and hold them for 5 seconds or more to
complete the self-diagnosis.

● Segment check of display

● Version display of A/C and audio controller, as well as audio unit

● Operation che ck of swit ches

● Error record display of A/C and audio controller, as well as audio unit

A

B

C

D

E

F

SKIA4530E

G

H

I

J

AV

L

M

SKIA1363E

Revision; 2004 April 2003 G35 Coupe

AV-23

AUDIO

MODE 1

Each time TUNE switch is pressed, segment display status is
switched and missing segment is checked.

SKIA1297J

MODE 2

Each time TUN E switch is p ressed, vers ions of A/C an d audio co n­troller, as well as audio unit are displayed.

SKIA4531E

Version

Audio unit 2 AUD ####
A/C and audio controller 2 ES ####
CD auto changer 2 6 C D ####

Mode Unit Version

Display

Revision; 2004 April 2003 G35 Coupe

AV-24

AUDIO

MODE 3

Each time each switch is pressed, key codes of each switch are displayed and input status of each switch is
checked.

CAUTION:

When AUDIO switch can switch modes, it is judged normal.

A

B

C

D

E

F

NO. SWITCH

1POWER 3SW32
2 CD EJECT 3 S W 3 4 1 1
3 TAPE EJECT 3 S W 3 4 1 3
4 CD LOAD 3 S W 3 4 1 4
5DISC 3SW3420
6 TAPE < > 3 S W 3 4 2 4

7FM/AM3SW3427
8SAT3SW342E

9 SEEK/TRACK UP 3 S W 3 4 3 0
10 SEEK/TRACK DOWN 3 S W 3 4 3 1
11 TUNE UP/FF 3 S W 3 4 3 2
12 TUNE DOWN/REW 3 S W 3 4 3 3
13 SCAN 3 S W 3 4 3 6
14 AUT O PRESET 3 S W 3 4 3 8
15 VOLUME UP 3 S W 3 4 4 2
16 VOLUME DOWN 3 S W 3 4 4 3
17 REPEAT 3 S W 3 4 5 0

18

19 FUNCTION1 3 S W 3 4 7 1
20 FUNCTION2 3 S W 3 4 7 2
21 FUNCTION3 3 S W 3 4 7 3
22 FUNCTION4 3 S W 3 4 7 4
23 FUNCTION5 3 S W 3 4 7 5
24 FUNCTION6 3 S W 3 4 7 6

PTY (BOSE system) 3 S W 3 4 5 1

DOLBY (Base system) 3 S W 3 4 5 8

SKIA4532E

DISPLAY

MODE SWITCH KEY CODE DISPLAY

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-25

AUDIO

MODE 4

Each time TUNE switch is pressed, error records of A/C and audio
controller, as well as audio unit are displayed.

SKIA4533E

ERROR ITEM

S METER ERROR Not used for diagnosis 4 S — M T R # #
TUNER FASE Not used for diagnosis 4 T F A S E # #
FOCUS ERROR Not used for diagnosis 4 F O C U S # #
BUILT-IN DISC ERROR Displays CD focus error number. 4 D I S C # #

MECHANICAL ERROR

BUILT-IN CD DIFFERENCE
DISC ERROR

COMMUNICATION ERROR Not used fo r diagnosis 4 A — C O M # #

ES INFORMATION LINE CUT
ERROR

GS1 MECHANICAL CONNECT
CUT ERROR

DIAGNOSIS CONTENTS and

DETECTION CONDITION

Displays internal mechanical error
number.

Displays disc difference
ment number.

Displays number for communication
breakdown between electronic tuner
and A/C and audio controller (discon­nection of flexible printed circuit).

Not used for diagnosis 4 G S 1 # #

NOTE

judge-

MODE DIAGNOSIS ITEM

4MECH ##

4DDISC##

4E—COM##

DISPLAY

NOTE:

Disc difference indicates special-shaped disc or damaged di sc.

Erase history of errors

● Erase history of errors, press function switches 4 and 6 simulta-

neously in mode 4, and hold them for 5 seconds or more.

● Erase resul ts of error records are displayed on display.

FRE-

QUENCY

SKIA4534E

HISTORY OF ERRORS CONTENTS

All error information cleared. 4 A L L C L R

Not all error information cleared. 4 F A L S E

Revision; 2004 April 2003 G35 Coupe

MODE INDICATION

AV-26

DISPLAY

AUDIO

Trouble Diagnosis AKS003GA

The majority of the audio tr ou bl es are th e r es ul t of outside c au se s (ba d CD /c as se tte , ele c trom a gn eti c in terf er­ence, etc.). Ch eck the inspection items below to diagnose the malf unction.

A

PROBLEM WITH RADIO, TAPE AND CD

Symptom Check items Possible cause

Inoperative

No sound

● Check that the ign ition sw i tch is in the ACC posi t io n.

● Check that the volume is not turned down.

● Check that the balance and fader control knobs are

centered.

Poor sound

● Check that the bass and treble adjustment knobs are

centered.

Noisy –

FOR RADIO ONLY

Symptom Check items Possible cause

No sound

Noisy

Selected radio stations stored in
memory are deleted

● Check that the radio is tuned to a station's frequency.

● Check that the radio is tuned to a station's frequency.

● Check that the signal of the received station is not

weak.

● Check that no mirror-type window film nor any metal

object (after-market antenna, etc.) is attached on the
rear window glass (Note 1).

● Check whethe r or not the malf unct i on occurs only in

a particular area. (Note 2)

B

● Audio unit

● Audio unit power circui t. R efe r to AV-

30, "Power Supply Circuit Inspection" .

● Audio unit

● Audio unit power circui t. R efe r to AV-

30, "Power Supply Circuit Inspection" .

● Speaker

● BOSE speaker amp.(BOSE system)

● Sound signal circuit between speaker

and Audio unit (Base system)

● Sound signal circuit between speaker

and BOSE speaker amp.(BOSE sys­tem)

● Audio unit

● BOSE speaker amp. (BOSE system)

● Speaker

● Audio unit

● BOSE speaker amp. (BOSE system)

● Each electrical equipment

● Audio unit

● Antenna feeder

● Antenna amplifier

● Window antenna

● Audio unit

● Antenna feeder

● Antenna amplifier

● window antenna

● Noise prevention parts

● Each electrical equipment

● Wire harnes s of each pi ece of elect ri-

cal equipment

● Audio unit

–

● Audio unit power circuit. Refer to AV-

30, "Power Supply Circuit Inspection" .

C

D

E

F

G

H

I

J

AV

L

M

NOTE:

1. The cause is a reduction i n the receiving sensitivity of the window antenna.

2. This is noise resulti ng fro m v ar iat i on s i n f iel d st re ng th , su ch as fa di ng no is e a nd mu lt i -p a th no i se, o r ex te r­nal noise from trains and other sources. It is n ot a malfunction.

● Fading noise: Thi s n oi se oc cu rs b eca us e o f var i a tion s i n t h e fi el d s tre ng t h in a na r row r a ng e due to mo un -

tains or buildings bloc k ing the si gn al .

● Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the

antenna at a different time from the waves which reflect off of mountains or buildings.

Revision; 2004 April 2003 G35 Coupe

AV-27

FOR CASSETTE PLAYER ONLY

Symptom Check items Possible cause

Cassette tape cannot be inserted.

Cassette tape cannot be ejected.

Auto reverse does not work, or the
tape direction changes in the middle
of play.

There is much noise.

The sound is not clear.

Sound fluctuates/tape speed not cor­rect

No sound.

● Check that a casse tte tape is not alre ady inserted.

● Check that the cassette has no deformation or other malfunction.

● Check that the cassette has no deformation or other malfunction.

● Check that the cassette tape does not sag.

● There is a problem with tape winding. Check that there is no slack

● Check that an old cassette tape is not being used.

● Check that the cassette tape itself does not have a lot of noise, or

● Check that the tune is recor ded on tape with Dol by B NR OFF

● Check that the sound quality of the cassette tape itself is not poor.

● Check that there is no tape winding problem, sagging, stretching,

● Check that there is no pro bl em with the recording speed of the

● Check that the cassette tape has been recorded on.

AUDIO

or other malfunction.

that the tape does not have a low recording level.

and played with Dolby B NR ON.

or other malfunction.

cassette tape.

● Audio unit

● Audio unit power cir-

cuit. Refer to AV-30,

"Power Supply Cir­cuit Inspection" .

Audio uni t

Revision; 2004 April 2003 G35 Coupe

AV-28

AUDIO

FOR CD ONLY

Symptom Check items Possible cause

CD cannot be inserted. Check that a CD is not already inserted.

CD cannot be ejected. –

The CD cannot be played.

The sound skips, stops suddenly, or is
distorted.

● Check that the CD is not upside down.

● Check that there is no dirt, dama ge, or wat er on the di sc.

● Check that there is no dirt, dama ge, or wat er on the di sc.

● Check that the trouble is not due to strong vibration.

● Audio unit

● Audio unit power cir-

cuit. Refer to AV-30,

"Power Supply Cir­cuit Inspection" .

Audio uni t

Noise Inspection AKS003GB

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctio n.
Check if noise i s c a us ed an d/or changed by en gi ne rotatio n, ignition switc h tu rne d to each position , a nd op er­ation of each piece of electrical equipment, and determine the cause.

NOTE:

The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.

TYPE OF NOISE AND POSSIBLE CAUSE

Occurrence condition Possible cause

A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.

Occurs only when engine is ON.

The occurrence of the noise is linked with the operation of the fu el pump . ● Problem with the fuel pump condenser

Noise only occurs when various
electrical components are oper­ating.

The noise occurs constantly, not just under certain conditions.

A cracking or snapping sound occurs while the veh icle is bei ng dr iven, especially
when it is vibrating excessively.

A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is
running and the light switch is ON.

A cracking or snapping sound occurs with the
operation of various switches.

The noise occurs when various motors are operat­ing.

● Problem with th e ignition condenser.

● Problem with the alter nat or

● Relay malfunction, radio malfunction

● Problem with th e mo tor case ground

● Problem with the motor

● Rear defog ger co il ma lfunction

● Open circu it in prin te d heat er

● Poor groun d of antenn a am plif ier or

antenna feeder line

● Mirror type film is attached on the rear win-

dow glass

● After-market TV antenna and/ or electrical

accessories such as radio are attached on
the rear window glass.

● Problem with the ground wire of body parts.

● Problem with ground due to part installation

problem

● Problem with w iring connections or a short

circuit

A

B

C

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-29

AUDIO

Power Supply Circuit Inspection AKS003GC

1. CHECK FUSE

● Check that the following fuses of the BOSE speaker amp. and Audio unit are not blown.

Terminals

Unit

Connector Terminal

Audio unit M40

BOSE speaker amp. B123 1 Battery power 37

6 Battery power 37

10 Ignition switch ACC or ON 6

Signal name Fuse No.(+)

OK or NG

OK >> GO TO 2.
NG >> If fuse is bl own, be sure to elim inate cau se of pro blem befo re installi ng new fu se. Refer to PG-4,

"POWER SUPPLY ROUTING CIRCUIT" .

2. POWER SUPPLY CIRCUIT CHECK

1. Disconnect audio unit and BOSE speaker amp. connector.

2. Check voltage between the audio unit and ground.

Terminal No.

Unit

Connector

Audio uni t M40

(+)

Terminal

(wire color)

6 (Y) G ro und

10 (LG) Ground 0 V

(-)

OFF ACC ON

Battery
voltage

Battery

voltage

Battery

voltage

Battery
voltage

Battery
voltage

3. Che ck vol tage be tw ee n BOSE spe ak er am p. an d ground.

Terminal No.

Unit

BOSE
speaker
amp.

Connector

B123 1(Y/R) Ground

(+)

Terminal

(wire color)

(-)

OFF ACC ON

Battery
voltage

Battery

voltage

OK or NG

OK >> ● Inspection end. (Base system)

● GO TO 3 (BOSE system)

NG >> Repair or replace harness.

SKIA1992E

Battery
voltage

SKIA4040E

Revision; 2004 April 2003 G35 Coupe

AV-30

AUDIO

3. GROUND CIRCUIT CHECK

Check continuity between BOSE speaker amp. harness connector
B123 terminal 17 (B/R) and ground.

Continuity should exist.

OK or NG

OK >> Inspection end.
NG >> Repair or replace harness.

SKIA4041E

Audio System Does Not Turn On AKS003GD

1. SELF-DIAGNOSIS

1. Perform self-diagnos is. Refer to AV-74, "

OK or NG

OK >> Replace audio unit.
NG >> Check the malfun ctioned area accor ding to the self-diagnosis result.

Steering Wheel Audio Control Switch Does Not Operate AKS003GE

Self-Diagn osis Mode" with navigation system.

1. STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE CHECK

1. Disconnect steering wheel audio control switch connector.

2. Check resistance steering wheel audio control switch. Refer to AV-2 2, "

Switch Resistance Check" .

Steering Wheel Audio Control

A

B

C

D

E

F

G

H

I

Resistance value is OK?

OK or NG

OK >> GO TO 2.
NG >> Replace steering wheel audio contro l switch.

2. STEERING WHEEL AUDIO CONTROL SWITCH CIRCUIT CHECK

1. Disconnect audio unit connector.

2. Check continuity between audio unit harness connector M39
and combination switch (spiral cable) harnes s connector M23.

Terminals

Connector

M39

OK or NG

OK >> Check combination switch (spiral cable).
NG >> Replace audio unit.

Terminal

(wire color)

22 (R)

25 (Y) 31 (Y)

Connector

M23

Terminal

(wire color)

24 (R)

Continuity

Yes23 (G) 32 (G)

J

AV

L

M

SKIA4042E

Revision; 2004 April 2003 G35 Coupe

AV-31

AUDIO

Speed Sensitive Volume System Does Not Work AKS004CZ

1. VEHICLE SPEED OPERATION CHECK

Does speedomete r is operated nor mally?
Yes or No

Yes >> GO TO 2.
No >> Check c ombinatio n meter t rouble diagno sis. R efer toDI-19, "

“COMBINATION METERS”.

Inspection/Vehicle Speed S ignal" in

2. HARNESS CHECK

1. Turn the ignition switch OFF.

2. Disconnect audio unit connector and combination meter con­nector.

3. Check continuity betwe en audi o uni t har ness c onnec tor M 39 ter ­minal 18 (W/G) and Uni fied meter and A/C amp. harness co n­nector M19 terminal 19 (W/G).

Continuity should exist.

4. Check continuity betwe en audi o uni t har ness c onnec tor M 39 ter ­minal 18 (W/G) and ground.

Continuity should not exist.

SKIA4059E

OK or NG

OK >> GO TO 3.
NG >>

● Check connector housings for disconn ected or loose terminals.

● Repair harness or connector.

3. VEHICLE SPEED SIGNAL CHECK 1

1. Connect audio unit connector.

2. Turn the ignition switch ON.

3. Che ck voltage between audio u nit harness connector M3 9 ter-

minal 18 (W/G) and ground.

Approx. 3 .5V or more

OK or NG

OK >> GO TO 4.
NG >> Replace audio unit.

4. VEHICLE SPEED SIGNAL CHECK 2

1. Connect combinatio n meter connector.

2. Start engine and drive vehic le at mo re tha n 40 km/h (25MPH).

3. Check the signal between audio unit harness connector M39
terminal 18 (W/G) and ground with CONSULT-ll or oscilloscope.

SKIA4060E

18 (W/G) – Ground : Refer to AV-19, "Terminals

and Reference Value for
Audio Unit for BOSE Sys­tem" .

OK or NG

OK >> Replace audio unit.
NG >> Check combination meter system. Refer to DI-14, "

METERS”.

Revision; 2004 April 2003 G35 Coupe

AV-32

Diagnosis Flow" in “COMBINATION

SKIA4061E

AUDIO

Locking CD Auto-Changer Mechanism (Audio Unit of BOSE System) AKS003ZF

CAUTION:

● Prior to removing a malfunctioning CD auto-changer unit (Audio unit of BOSE system) that will be

shipped for repair, the changer mechanism MUST BE LOCKED to p revent the mechanism from
being damaged during shipping.

● If a CD is jammed or unable to be removed from the unit, do NOT lock the change r mechanis m. If

the unit is to be shipped for repair, carefully pac k age the unit to prevent vibration and shock.

DAMPER LOCK PROCEDURE

1. Eject and remove any CDs from the Audio unit (BOSE system).

2. Turn ignition switch OFF. Wait until Audio unit (BOSE system) display is off and mechanism stops moving
(mechanism sound stops).

3. Press any on e of the disc selection butto ns once. When a display show s on the Audio unit (BOSE sys­tem), press the same disc selection button again within 5 seconds.

● The changer mechanism will lock itself within 10 secon ds.

4. After mechani sm stops moving (mecha nism sound stops), open the driver and pas senger window, and
then disconnect ne ga tiv e ba tte ry cable.

CAUTION:

After the battery cables are discon nected, do not open/close the driver and/or front passenger door
with the window in the full up position. The automatic window adjusting function will not work and the
side roof panel may be damaged.

NOTE:

After installing a new or remanufactured Audio unit (BOSE system), switching the Audio unit (BOSE system)
ON will automatically unlock the mechanism. A special unlocking procedure is not required.

A

B

C

D

E

F

G

H

Removal and Installation for Audio Unit AKS003GG

1. Perform damper lock operation. Refer to AV- 33 , "Locking CD Auto-Changer Mechanism (Audio Unit of

BOSE System)" .

2. Remove cluster lid C. Refer to IP-10, "

INSTRUM ENT PANEL ASSEMBLY" .

3. Unlock FPC (Flexible Print Circuit) connector lock on A/C and
audio controller side.

4. Pull off flexible p rinted circui t from connector.

5. Remove screws (top: 2).

SKIA0936E

I

J

AV

L

M

PKIA0572E

Revision; 2004 April 2003 G35 Coupe

AV-33

AUDIO

6. Remove screws (bottom: 4). Remove audio unit and display unit
assembly (with navigation system) from cluster lid C.

7. Separa te audio u nit from display unit asse mbly (with navigatio n
system).

PKIA0503E

8. Remove 8 screws, and then bracket.

CAUTION:

● When carrying audio unit body, do not touch internal

mechanism ac cess from cassette tape slot.

● Be careful not to allow foreig n ma teri al to e nter from ca s-

sette tape slot.

● Removal and Installation of A/C and Audio Controller.

Removal and Installation for A/C and Audio Controller AKS003GH

REMOVAL

1. R emove audio unit and displ ay unit assembly (with na vigation
system) from cluster lid C.

2. Remove screws (3) and remove A/C and audio controller.

PKIA0573E

SKIA0938E

SKIA1982E

INSTALLATION

Install in the reverse order of removal.

Revision; 2004 April 2003 G35 Coupe

AV-34

AUDIO

Disassembly and Assembly of A/C and Audio Controller AKS003GI

A

B

C

D

E

F

G

1. Printed circuit board 2. S wi tc h panel 3. Temperature adjusting knob

4. Automatic knob 5. Knob assembly A 6. Knob assembly B

7. Blind knob 8. Temperature adjusting ring 9. Knob assembly C

10. CD EJECT 1 1. LOAD 12. CD slot

13. TUNE /FF·REW 14. SEEK /TRACK 15. VOL

16. Volume control ring 17. AUTO· P 18. TAPE slot

19. AUDIO 20. Knob assembly D

22. RPT 23. SCAN

1. Remove screws (12), and remove printed circuit board.

CAUTION:

● Be sure not to damage printed circuit board by exposure.

21. DOLBY (Base system)
PTY (BOSE system)

H

I

J

SKIA1092J

AV

L

M

SKIA1085E

Revision; 2004 April 2003 G35 Coupe

AV-35

AUDIO

2. Remove switches from ba ck surface of switch panel using.

SKIA1093J

Removal and Installation of Door Speaker (Base System) AKS003GJ

REMOVAL

1. Remove door finisher. Refer to EI-30, "DOOR FINISHER"

2. Remove bolts (3), and remove speaker.

INSTALLATION

Install in the reverse order of removal.

Removal and Installation of Door Speaker (BOSE System) AKS003GK

RERMOVAL

1. Remove door finisher. Refer to EI-30, "DOOR FINISHER" .

2. Remove bolts (4), and remove speaker.

INSTALLATION

Install in the reverse order of removal.

Removal and Installation of Tweeter Behind Door mirror AKS003GL

REMOVAL

1. Remove corner cover inner. Refer toEI-32, "BODY SIDE TRIM" .

2. Remove screws (2), and remove tweeter behind door mirror.

SKIA4535E

SKIA0940J

PKIA1772E

Revision; 2004 April 2003 G35 Coupe

AV-36

INSTALLATION

Install in the reverse order of removal .

AUDIO

A

Removal and Installation of Rear Side Speaker AKS003ZG

REMOVAL

1. Remove rear side finisher. Refer to EI-32, "BODY SIDE TRIM" .

2. Remove screws (3) and remove speaker.

PKIA2373E

INSTALLATION

Install in the reverse order of removal .

Removal and Installation of Woofer AKS003GM

REMOVAL

1. Remove rear parcel shelf finisher. Refer to EI-34, "REAR PAR-

CEL SHELF FINISHER" .

2. Remove screws (4), and remove woof er.

B

C

D

E

F

G

H

I

INSTALLATION

Install in the reverse order of removal .

Removal and Installation of BOSE Speaker Amp. AKS003GN

REMOVAL

1. Remove luggage floor carpet and spare tire cover. Refer to EI-

39, "Removal and Installation for Trunk Room Trim" .

2. Remove trunk side box. Refer to EI-39, "

tion for Trunk Roo m Trim" .

3. Remove nuts (3), and remove BOSE speaker amp. from trunk
room floor.

Removal and Installa -

J

PKIA2374E

AV

L

M

PKIA2375E

Revision; 2004 April 2003 G35 Coupe

AV-37

4. Remove bolts (4), and remove bracket.

INSTALLATION

Install in the reverse order of removal.

AUDIO

PKIA2376E

Revision; 2004 April 2003 G35 Coupe

AV-38

AUDIO ANTENNA

AUDIO ANTENNA PFP:28200

System Description AKS003GO

With the ignition switch in ACC or ON, power is supplied

● through 10A fuse [No. 6, located in the fuse block (J/B)]

● to audio unit terminal 10.

Ground is supplied thro ug h the case of the antenna amp.
When the radio switch is turned ON, antenna signal is supplied

● through audio unit terminal 5

● to the antenna amp. terminal 2.

Then the antenna amp. is activated.
The amplified radio signals are supplied to the audio unit through the antenna amp.

A

B

C

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-39

AUDIO ANTENNA

Wiring Diagram - W/A N T- AKS003GP

TKWT0648E

Revision; 2004 April 2003 G35 Coupe

AV-40

AUDIO ANTENNA

Location of Antenna AKS003GQ

A

B

C

D

E

F

G

SKIA1949E

Window Antenna Repair AKS003GR

ELEMENT CHECK

1. Attach probe circuit tester (ohm setting) to antenna terminal on
each side.

● When measuring continuity, wrap tin foil around the top of

probe. Then, press the foil against the wire with your finger.

H

I

J

AV

L

M

SEL250I

SEL122R

Revision; 2004 April 2003 G35 Coupe

AV-41

AUDIO ANTENNA

2. If an elem en t is bro ke n, no con tin ui ty w ill exi st.

3. To locate a break, move probe along element. Tester needle will
swing abruptly when probe passes the broken point.

ELEMENT REPAIR

Refer to GW-87, "Filament Repair" .

SEL252I

SEL253I

Revision; 2004 April 2003 G35 Coupe

AV-42

NAVIGATION SYSTEM

NAVIGATION SYSTEM PFP:25915

System Description AKS003GS

The navigation system periodically calculates the vehicle's current
position according to the following three signals: Travel distance of
the vehicle a s det er m ined by th e v eh ic le sp ee d s en so r, turn i ng an gle
of the vehicle as determ in ed by th e gy ros co pe (ang ul ar ve lo city sen­sor), and the direction of vehicle travel as determined by the GPS
antenna (GPS information).
The current pos ition of th e vehicl e is th en id entif ied by comp ari ng th e
calculated veh icle position with m ap data read from the ma p DVD­ROM, which is stored in the DVD-ROM drive (map-matching), and
indicated on the screen with a current-location mark.

SKIA0370E

By comparing the vehicle position detection results found by the
GPS and by map-ma tc hin g, more ac cu rate vehicle posi tio n d ata can
be used.
The current vehicle position will be calculated by detecting the dis­tance the vehicle moved from the previous calculation point and its
direction.

A

B

C

D

E

F

G

TRAVEL DISTANCE

Travel distance calculations are based on the vehicle speed sensor input signal. Therefore, the calculation
may become inco rrec t as th e tire s wear d own . To prevent this, an automatic distance fi ne adj ustm en t fu nc tio n
has been adopted.

TRAVEL DIRECTION

Change in the travel direction of the vehicle is calculated by a gyroscope (angular velocity sensor) and a GPS

antenna (GPS informati on). As the gyroscope and G PS antenna have both meri t and demerit, input sign als
from them are prioritized in each situation. However, this order of priority may change in accordance with more
detailed travel conditions so that the t ravel direction is detected more accurately.

Type Advantage Disadvantage

● Direction errors may accumulate when the

vehicle is driven for long dista nce s wit hout
stopping.

● Correct direction cannot be detected when

the vehicle speed is low.

Gyroscope (angular velocity sensor)

GPS antenna (GPS information)

● Can detect the vehicle's turning angle

quite accurately.

● Can dete ct the vehicle's travel direction

(North/South/East/West).

MAP-MATCHING

Map-matching is a function that re positions the ve hicle on the road
map when a ne w loc ation i s judg ed to b e the m ost ac curate. This is
done by comparing the current vehicle position, calculated by the
method described in the position detection principle, with the road
map data around the vehicle, read from the map DVD-ROM stored in
the DVD-ROM drive.
Therefore, the vehicle position may not be corrected after the vehicle
is driven over a certain di stance or time in whic h GPS informa tion is
hard to receive. In this case, the current-location mark on the display
must be corrected manually.

CAUTION:

The road map data is based on data stored in the map DVD­ROM.

H

SEL684V

I

J

AV

L

M

SEL685V

Revision; 2004 April 2003 G35 Coupe

AV-43

NAVIGATION SYSTEM

● In map-matching, a lternati ve rout es to re ach th e dest ination will

be shown and prioritized, after the road on which the vehicle is
currently driven has been judged and the current-loca tion mark
has been repositio ne d.
If there is an error in distance and/or d irection, the alternative
routes will be shown in different order of priority, and the wrong
road can be avoided.
If two roads are runn ing in parallel, they a re o f th e s am e pri ority.
Therefore, the current-location mark may appear on either of
them alternately, depending on maneuvering of the steering
wheel and configuration of the road.

● Map-matching does not function correctly when the road on

which the vehicle is driving is new and not recorded in the map
DVD-ROM, or when the road patter n stored in the map data and
the actual road pattern are different due to repair.
When driving on a roa d not p resen t in the map, th e map- ma tch­ing function may find another road and position the current-loca­tion mark on it. Then, when the correct road is detected, the
current-location mark may leap to it.

● Effective range for comparing the vehicle position and travel

direction calculat ed by the distance and directi on with the road
data read from the map DVD-ROM is limited. Therefore, when
there is an excessive gap between the current vehicle position
and the position on the map, correction by map-matching is not possible.

SEL686V

SKIA0613E

GPS (GLOBAL POSITIONING SYSTEM)

GPS (Global Positioning System) has been developed and con­trolled by the US Department of Defense. The system utilizes GPS
satellite (N AVSTAR ), send in g ou t ra di o wav es w hil e f l yi ng o n an orbi t
around the earth at the height of approx. 21,000 km (13,000miles).
The GPS receiver c alculates the vehicle's positi on in three dimen­sions (latitude/longitude/altitude) according to the time lag of the
radio waves received from four or more GPS satellites (three-dimen-

sional positioning). If radio waves were received only from three
GPS satellites , the GPS rece iver calculate s the vehicl e's positio n in
two dimensions (latitude/longitude), u tilizing the altitude data ca lcu­lated previou sly by us ing radio waves fr om four o r more GPS satel­lites (two-dimensional positioning).
Accuracy of the GPS will deteriorate under the following conditions.

● In two-dimensional positioning, the GPS accuracy will deteriorate when the altitude of the vehicle position

changes.

● There may be an error o f appro xim ately 10m (30ft) i n posit ion detect ed by th ree-di mensio nal p osit ionin g,

which is more ac cu rate than two-dim ensional posit ioning. The accuracy can be e v en lo w er de pe nd ing on
the arrangement of the GPS satellites utilized for the positioning.

● Position detection is not possible when the vehicle is in an area where radio wave s from the GPS s atellite

do not reach, such as in a t unnel, park ing lot in a build ing, and under an elevat ed high way. Radio waves
from the GPS satellites may not be received when some object is located over the GPS antenna.

● Position correction by GPS is not available while the vehicle is stopped.

SEL526V

Revision; 2004 April 2003 G35 Coupe

AV-44

NAVIGATION SYSTEM

COMPONENT DESCRIPTION
NAVI Control Unit

● The gyro (angular speed sensor) and the DVD-ROM drive are

built-in units that cont rol the nav ig ati on func ti on s.

● Signals are received from the gyro, the vehicle speed sensor,

and the GPS antenna. Vehicle location is determined by com­bining this data with the data contained in the DVD-ROM map.
Locational information is shown on LCD(liquid crystal display)
screen.

A

B

C

D

PKIA0248E

DVD-ROM Drive

Maps, traffic control regulati ons, and other pertinent inform ation can
be easily read from the DVD-ROM disc.

Map DVD-ROM

● The map DVD-ROM has maps, traffic control regulations, and other pertinent information.

● To improve DVD-ROM map matching and route determination functions, the DVD-ROM uses an exclusive

Nissan format. Therefore, the use of a DVD-ROM provided by other manufactur ers cannot be used.

Gyro (Angular Speed Sensor)

● The oscillator gyro sensor is used to detect changes in vehicle steering angle.

● The gyro is built into the NAVI control unit.

E

F

G

H

PKIA0249E

I

J

AV

L

Revision; 2004 April 2003 G35 Coupe

AV-45

M

NAVIGATION SYSTEM

BIRD VIEW

™

The BIRD VIEW™ provides a detailed and easily seen display of road conditions covering the vehicle's imme­diate to distant area.

● MAP DISPLAY

SKIA0542E

● BIRD VIEW

™

Description

● Display area: Trapezoidal representation showing approx imate

distances (Wn, D, and Wd).

● Te n horizontal grid li nes indicate d isplay width whil e six vertical

grid lines indicate display depth and direction.

● Drawing line area shows open space, depth, and immediate

front area. Each area is to a scale of approximately 5:6:25.

● Pushing the “ZOOM IN” button during operation displays the

scale change and the view point height on the left side of the
screen.
The height of the view point increases or decreases when
“ZOOM” or “WIDE” is selected with the joystick.

SKIA0544E

SEL691V

Revision; 2004 April 2003 G35 Coupe

AV-46

NAVIGATION SYSTEM

MAP DISPLAY

Function of each icon is as follows:

1. Azimuth indication.

2. Position marker.

– The tip of the a rrow s hows the curre nt p ositi on. T he sha ft of the

arrow indicates the direction in which the vehicle is traveling.

3. GPS reception signal (indicates current reception conditions).

4. Distance display (shows the distance in a reduced scale).

A

B

C

FUNCTION OF NAVI SWITCH
Display with Pushed “DEST” Switch

● Easy Mode

● Expert Mode

SKIA0545E

SKIA2045E

D

E

F

G

H

I

J

AV

SKIA2046E

Revision; 2004 April 2003 G35 Coupe

AV-47

L

M

NAVIGATION SYSTEM

The function of each icon is as follows:

Icon

Address Book × Favorite place can be saved to memory.
Address/Street ××The destination can be searched from the address.
Point of Interest (POI) ××The destination of favorite facility can be sear ched.
Previous Dest. × The previous ten destinations stored in memory are displayed.
Intersection × The destination can be searched from the intersection.
City × The destination can be searched from city name.
Map × The destination can be searched from the map.

Phone Number ×
Home × Sets the home as a destination.

Help × Explanation of Navigational fu nct ions appear on the Display.

MODE

Easy Exper t

Description

When two or more countries are included in one DVD -RO M , the des tina tion can be
searched for under the country name.

Display with Pushed “ROUTE” Switch

● Easy Mode

● Expert Mode

SKIA0548E

SKIA0549E

Revision; 2004 April 2003 G35 Coupe

AV-48

NAVIGATION SYSTEM

The function of each icon is as follows:

Icon

Quick Stop ××
Where am I? ××Next, current and previous street names can be displayed.

Route Info.* ×

Edit Route* ×

Help × Explanation of Navigational functions appear on the Display.

*: When destinations have bee n entered, route guidance has been turned OFF or destination has been reac hed, “ R o ute In fo.” and “ Edit
Route” are not displayed.

MODE

Easy Expert

Description

The selected facility is set as the destination or wayp oi nt.
(Route guidance has been turned OFF or the destination has been reached)

The following items can be set.

● Complete Route

● Turn List

● Route Simulation

(Displayed only when the destination area has been set.)
Change the destination or add the transit points of the route set in the route guide. (Dis-

played only when the automatic reroute fun ction has been turned OFF and the recom­mended route is not followed.)

A

B

C

D

E

F

Display with Pushed “SETTING” Switch

The function of each icon is as follows:

Icon Description

Clock Settings of clock can be performed
Display Settings of display can be performed.
Language/Unit Settings of Language or unit can be performed.
Navigation Settings and adjustin g of nav ig ation can be per fo rm ed.
Short Menus Easy M ode and Expert Easy Mode can be switched.
Guidance Volume The volume and/or on/off of voice prompt can be contr olle d by the joys tick .
Help (only easy mode) Explanation of Navigational Functions Appe ar on t he Dis pl ay.

SKIA2047E

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-49

NAVIGATION SYSTEM

Display with Pushed ″INFO″ Switch

NAVI control unit is communicating combination meter.

1. Push “INFO” switch to display vehicle in formation display.

NOTE:

If a warning signal is received by NAVI at this time, NAVI control
unit displays warning message on screen.

2. Select “Trip Computer”, “Fuel Economy” or “ M aintenance”.

SKIA2061E

Display items Display/Setting contents

Displays driving time with a range of 0000:00:00 to
9999:59:59.

Displays driving distance with a range of 00000.0 to

99999.9.

Displays fuel economy with ignition switch ON, average
fuel economy each 30 minutes.

Displays possible driving distance with remaining fuel.

Maintenance intervals of engine oil and setting of oil
change cycle.

Maintenance intervals of oil filter and setting of filter
replacement cycle.

Trip Computer

Fuel Economy

Maintenance
(with Maintenance informat ion *)

Elapsed Time

Driving Distance
Average speed Displays average speed with a range of 000.0 to 999.9.

Average Fuel Econ­omy (MPG)

Distan ce to Empty
(Miles)

Fuel Economy (MPG) Displays fu el econom y each approx. 100 ms.
Fuel Economy Record Dis pla ys Average Fue l Cons um pt ion Histor y.

Engine oi l

Oil Filter

*:Maintenance information displays the change cycle of engine oil and oil filter on LCD monitor depending on the driving distance speci­fied by a driver or a technician.

Reference

AV-56, "
COMPUTER
INFORMA­TION"

AV-56, "
ECONOMY
INFORMA­TION"

AV-57,
"MAINTE­NANCE
INFORMA­TION"

Clock Setting

How To Perform Navigation Setting

1. Start the engine.

2. Push “SETTING” switch.

3. Select “CLOCK”.

● GPS time can be changed to offset time.

● Daylight Savings Time can be set.

● Time zone can be set.

page

TRIP

FUEL

SKIA2063E

Revision; 2004 April 2003 G35 Coupe

AV-50

NAVIGATION SYSTEM

Display Setting

How To Perform Navigation Setting

1. Start the engine.

2. Push “SETTING” switch.

3. Select “Display”.

● Brightness, contrast, or map background setting can be

changed.

● Display slee p mo de ON/O FF ca n be swi tc he d.

● Display sleep mode timer can be set.

A

B

C

D

SKIA2064E

Language Setting

How To Perform Navigation Setting

1. Start the engine.

2. Push “SETTING” switch.

3. Select “Language”.

● Language setting can be switched.

● Unit setting can b e changed.

Navigation Setting

How To Perform Navigation Setting

1. Start the engine.

2. Push “SETTING” switch.

3. Select “Navigation” .

E

F

G

H

SKIA2065E

I

J

AV

L

SKIA2048E

Revision; 2004 April 2003 G35 Coupe

AV-51

M

Application Items

NAVIGATION SYSTEM

Icon Description
View Map display mode can be switched. AV-52

Heading

Nearby Display Icons

Save Current Location Current vehicle location can be registered in Address Book. AV-53

Adjust Current Location

Auto Re-route ON/OFF ON/OFF of Auto Re-route can be switched. AV-54
Avoid Area Setting A particular area can be avoided when routing. AV-54
Button T one/Beep Response Button tone can be selected ON/OFF AV-54
Clear Memory Address Book, Previous destination or Avoid area can be deleted. AV-54
Edit Address Book Address Book can be edited. AV-55

GPS Information

Quick Stop Customer Setting One facility of your selection can be added to your Quick Stop. AV-55
Set Average speed

Tracking Tracking to the present vehicle position can be displayed. AV-56

Heading of the map display can be customized for either north heading or the
actual driving direction of the vehicle.

Icons of facilities can be displayed.
Facilities to be displayed can be selected from th e var iety selections.

Current location of position marker can be adjusted. Direction of position marker
also can be calibrated when heading direction of the vehi cle on th e dis pla y is
not matched with the actual direction.

The GPS data includes longitude, latitude and altitude (distance above sea
level) of the present vehicle position, and current date and time for the area in
which the vehicle is being driven.
Also indicated are the GPS reception conditions and the GPS satellite position.

Average vehicle speed can be set to calibrate estimat ed journey time for the
destination.

Reference

page

AV-52

AV-53

AV-53

AV-55

AV-55

“VIEW” MODE

1. Select “Bird view™” or “Plan view ” icon.

● To open the map screen disp la y w ith Bird View™, select “Bird

View™”.

● To open the map screen display with Plan View, select “Plan

View”.

“HEADING” MODE

● To display North up, select “North up”.

● To display the car heading up, select “Headin g up”.

SKIA0554E

SKIA0561E

Revision; 2004 April 2003 G35 Coupe

AV-52

NAVIGATION SYSTEM

“NEARBY DISPLAY ICONS” MODE

● Select an icon to display on the map screen.

A

B

C

“SAVE CURRENT LOCATION” MODE

● The current vehicle location can be registered in “Address

Book”.

NOTE:

“Address Book” can store 50 items max.

“ADJUST CURRENT LOCATION” MODE

1. Select an icon“right” or “lef t” to calibrate the heading direction.
(Arrow marks will rotate correspond in g to the cal ibr ation key.)

SKIA0562E

SKIA2050E

D

E

F

G

H

I

J

AV

SKIA2049E

2. Select “Set”. Then the vehicle mark will be matc hed to the arrow
mark.

SKIA0564E

Revision; 2004 April 2003 G35 Coupe

AV-53

L

M

NAVIGATION SYSTEM

“AUTO RE-ROUTE” MODE

● To Perform the auto re-rout e of route, select “On”.

● Not to perform the auto re-route of route, select “Off”.

“AVOID AREA SETTING” MODE

● Areas to avoid can be registered.

SKIA0558E

“BUTTON TONE/BEEP RESPONSE” MODE

● If beep is required, select “On”.

● If no beep is required, select “Off”.

“CLEAR MEMORY” MODE

● To delete all the stored places in “Address Boo k”, “Avoid Area”

and “Previous Dest”, select “Yes”.

SKIA2058E

SKIA2059E

SKIA0566E

Revision; 2004 April 2003 G35 Coupe

AV-54

NAVIGATION SYSTEM

“EDIT ADDRESS BOOK” MODE

● Edit the items registered in Address Book.

A

B

C

“GPS INFORMATION” MODE

● Latitude, lon gi tud e, altitude, astrometric state, an d sa te lli te loca-

tion are displayed as GPS information.

NOTE:

Altitude is displayed only in three-dimensional status.

“QUICK STOP CUSTOMER SETTING” MODE

● Select a category for the “Quick Stop” menu.

SKIA2057E

SKIA0555E

D

E

F

G

H

I

J

AV

SKIA0557E

“SET AVERAGE SPEED” MODE

● Set the average vehicle speed to calibrate the estimated journey

time for the destination.

● Set three items; “Freeway”, “Main Roads”, and “Ordinary

Roads”.

SKIA0565E

Revision; 2004 April 2003 G35 Coupe

AV-55

L

M

NAVIGATION SYSTEM

“TRACKING” MODE

● To leave no trail on the map, select “Off”.

● To leave a trail in the map, select “On”.

NOTE:

When a trail disp lay i s turn ed OFF, trail data is erase d fr om the me m­ory.

GUIDE VOLUME SETTING
Description

Following voice guidance setting can be changed.

SKIA0559E

Activation/Deactivation Setting

● The voice prompt can be turned on/off by Pushing the “Guidance Volume” button.

Voice Volume Setting

● Volume of the voice can be controlled by bending the joystick to left/right.

TRIP COMPUTER INFORMATION

● Elapsed time, Driving distance and Average speed are dis-

played as Trip Computer informati on.

FUEL ECONOMY INFORMATION

● Average Fuel Economy, Distance to Empty, Fuel Economy are

displayed as Fuel Economy information.

SKIA2051E

SKIA2052E

SKIA2053E

Revision; 2004 April 2003 G35 Coupe

AV-56

NAVIGATION SYSTEM

● Select “Fuel Economy Record”. The average fuel consum ption

history will be displayed in graph along with the average for the
previous Reset – to – Reset per iod.

MAINTENANCE INFORMATION

● Engine Oil and Oil Filter are displayed as Maintenance informa-

tion.

A

B

C

SKIA2054E

D

E

F

G

WARNING INDICATIONS

When combination meter receives warning signal from some control
units or sensors, then combination meter warning lamp is illumi­nated.
Then combinati on met e r sen ds warni ng si gn al to NAVI control unit to
display warning indications on the screen.

Warning indicators

MALFUNCTION

ENGINE OIL PRES­SURE

Warning lamps in

instrument panel

SERVICE

ENGINE

SOON

Engine oil

pressure

Warning detection and cancel conditions Cases of malfunction

Detection condition

Cancel condition

Detection condition

Cancel condition

Warning lamp ON signal is
detected while engine is running.

Warning lamp OFF signal is
detected.

Warning lamp ON signal is
detected for at least approx. 5 sec­onds while engine is running.
[Engine oil pressure: MAX.

approx. 29 kPa (0.3 kg/cm2 ,4 psi)]
Warning lamp OFF signal is

detected. [Engine oil pressure:
MIN. approx. 29 kPa (0.3 kg/cm

,4 psi)]

ECM malfunction

Engine oi l pressure
decreases.

2

SKIA4634E

H

I

J

AV

SKIA2060E

L

M

Revision; 2004 April 2003 G35 Coupe

AV-57

NAVIGATION SYSTEM

Warning indicators

SUPPLEMENTAL AIR
BAG

LOW BRAKE FLUID Brake

OVERHEATING –

CHARGE Charge

LOW WASHER FLUID –

LOW FUEL Fuel level

Warning lamps in

instrument panel

PARKING BRAKE Brake

DOOR OPEN Door

ANTI–LOCK BRAKE ABS

VEHICLE DYNAMIC
CONTROL

TRACTION CONTROL
SYSTEM

Air bag

VDC

TCS

Warning detection and cancel conditions Cases of malfunction

Warning lamp ON signal is

Detection condition

Cancel condition

Detection condition

Cancel condition

Detection condition

Cancel condition

Detection condition

Cancel condition

Detection condition

Cancel condition Except above condition.

Detection condition

Cancel condition

Detection condition

Cancel condition

Detection condition

Cancel condition

Detection condition

Cancel condition

Detection condition

Cancel condition

Detection condition

Cancel condition

detected for at least approx. 10
seconds after ignition switch is
turned ON.

Warning lamp OFF signal is
detected.

Warning lamp ON signal (fluid
level) is detected.

Warning lamp OFF signal is
detected.

Engine coolant temperature as
being approx. 119°C (246°F) min.

engine coolant temperature as
being approx. 105°C (221°F) max.

Warning lamp ON signal is
detected while engine is running.
Charging system malfunction

Warning lamp OFF signal is
detected.

Washer liquid level falls below
approx. 0.4 (7/8 USqt, 3/ 4 Imp

pt).

After warning lamp ON signal is
detected, vehicle is driven for over
specified distance. [Fuel level:

Approx. 11.8 (12−1/2 USqt, 10−
3/8 Imp qt)]

Warning lamp OFF signal is
detected.

Parking brake ON signal is
detected while vehicle is running
[approx. 5 km/h (3 MPH) or faster].

Vehicle is stopped, or parking
brake OFF signal is detected.

Vehicle is running [approx. 5 km/h
(3 MPH) or faster] and door ajar of
any of the doors is detected.

Vehicle is stopped and all the
doors lock.

Warning lamp ON signal is
detected when engine is running.

Warning lamp OFF signal is
detected.

Warning lamp ON signal is
detected when engine is running.

Warning lamp OFF signal is
detected.

Warning lamp ON signal is
detected when engine is running.

Warning lamp OFF signal is
detected.

SRS air bag system mal­function

Low brake fluid level

Engine cooling system
malfunction

Charging system mal­function

Low washer liquid level

Low fuel level

Parking brake remains
engaged.

Door is open

ABS control system mal­function

VDC system malfunction

TCS system malfunction

Revision; 2004 April 2003 G35 Coupe

AV-58

NAVIGATION SYSTEM

Warning indicators

AUTOMATIC TRANS­MISSION OIL TEMPER­ATURE

CRUISE CONTROL SET

Warning lamps in

instrument panel

AT

CHECK

Detection condition

Cancel condition

Detection condition

Cancel condition

Warning detection and cancel conditions Cases of malfunction

Warning lamp ON signal is
detected after ignition switch is
turned ON.

Warning lamp OFF signal is
detected.

Warning lamp ON signal is
detected after ignition switch is
turned ON.

Warning lamp OFF signal is
detected.

TCM system malfunction

ASCD system malfunc­tion

Precautions for NAVI Control Unit Replacement AKS003GT

● When replacing the NAVI control unit, eject the map DVD-ROM before disconnecting the battery.

● The NAVI control unit has the follow ing information stored in its memory. Record the memo ry contents

before replacing the control unit, and input them in the new unit as necessary.

<Image quality> ● Brightness of light when ON/OFF

● Dimming switching

● Displa y col or swit ch ing

<Navigation mode>

NOTE:

Only removing the battery does not erase the memory.

● Latest status ( map scree n/bird vi ew™, redu ced scal e, rot ation angle of

map screen, route guide ON/OFF, track ON/OFF, etc.)

● Current position

● Destination, passing point 1 - 5

● Registered places, their names, etc.

A

B

C

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-59

NAVIGATION SYSTEM

Component Parts Location AKS003GU

SKIA2208E

Revision; 2004 April 2003 G35 Coupe

AV-60

NAVIGATION SYSTEM

Schematic AKS003GV

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWT0649E

Revision; 2004 April 2003 G35 Coupe

AV-61

NAVIGATION SYSTEM

Wiring Diagram —NAVI— AKS003GW

TKWT0650E

Revision; 2004 April 2003 G35 Coupe

AV-62

NAVIGATION SYSTEM

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWT0285E

Revision; 2004 April 2003 G35 Coupe

AV-63

NAVIGATION SYSTEM

TKWT0651E

Revision; 2004 April 2003 G35 Coupe

AV-64

NAVIGATION SYSTEM

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWT0652E

Revision; 2004 April 2003 G35 Coupe

AV-65

NAVIGATION SYSTEM

Wiring Diagram —COMM — AKS003GX

TKWT0653E

Revision; 2004 April 2003 G35 Coupe

AV-66

NAVIGATION SYSTEM

A

B

C

D

E

F

G

H

I

J

AV

L

M

TKWT0289E

Revision; 2004 April 2003 G35 Coupe

AV-67

NAVIGATION SYSTEM

Terminals and Reference Value for NAVI Control unit AKS003GY

● Measure using circuit tester and oscilloscope.

● Measure with connector connected unless otherwise specified.

● CAUTION:

Confirm voltage between negative terminal on each unit and body ground is approximately 0V.

● If ignition ON is re quired in measurem ent condit ion, meas ure with en gine runni ng to pr event batt ery dis-

charge.

Terminal No. (wire

color)

(+) (–)

1 (B) Ground Ground – ON – Approx. 0 V –
2 (Y)
3 (Y)
4 (B) Ground Ground – ON – Approx. 0 V –

6 (LG) Ground ACC signal Input ACC – Battery voltage

8 (W/G) Ground

9 (R/L) Ground

Ground

Item

Battery

power

Vehicle

speed signal

(2-pulse)

Illumination
signal

Signal

input/

output

Input OFF - Battery voltage

Input ON

Input OFF

Ignition

switch

Condition

Reference value

Operation

When vehicle speed

is approx. 40 km/h

(25 MPH)

SKIA0168E

Lighting switch posi­tion 1st or 2nd

Lighting switch posi­tion OFF

Select R- position Battery voltage The navigation

Battery voltage

Less than approx. 2V

11 (OR) Ground

Reverse sig-

nal

Input ON

Other position Less then approx. 3V

Example of

symptom

System does not

work properly.

System does not

work properly.

Navigation cur-

rent-location

mark does not

indicate the cor-

rect position.

Night illumina­tion for switches
does not illumi­nate.

current-location

mark moves

strangely when

the vehicle is

moving back-

wards.

Only ro ute gui de

12 (L/W) Ground

13 (W/B) Ground

14 (L) 17

Voice guide

signal (+)

Voice guide

signal (-)

RGB area

signal

Output ON

– ON – Approx. 0V –

Output ON

Revision; 2004 April 2003 G35 Coupe

Push the “VOICE”

switch.

Push the “INFO”

switch.

AV-68

and operation

guide are not

heard.

SKIA0171J

RGB screen is

not shown.

SKIA0162E

NAVIGATION SYSTEM

Terminal No. (wire

color)

(+) (–)

15 (R) 17

17 Ground Ground – ON – Approx. 0V –

18 (B) 17

20 (P) 17

Item

RGB signal

(B: blue)

RGB signal

(R: red)

RGB syn-

chronizing

signal

Signal

input/

output

Output ON

Output ON

Output ON

Ignition

switch

Condition

Operation

Select “Color ber” of

CONFIRMATION/

ADJUSTMENT func-

tion.

Select “Color ber” of

CONFIRMATION/

ADJUSTMENT func-

tion.

Push the “MAP”

switch.

Reference value

looks yellowish.

SKIA0167E

SKIA0165E

RGB screen is

Example of

symptom

RGB screen

RGB screen
looks bluish.

rolling.

A

B

C

D

E

F

G

H

21 (W) 17

RGB signal

(G: green)

26 (SB) Ground

27 (Y/G) Ground

31 Ground Ground – ON – Approx. 0V –

33 (G) 31

35 (B) 31

Ignition ON

signal

Ignition sig-

nal

Communica-

tion signal

(DISP -

NAVI)

Communica-

tion signal

(NAVI -

DISP)

SKIA0164E

Select “Color ber” of

Output ON

Output ON – Battery vol tage –

Input ON – Battery voltage

Input ON

Output ON

CONFIRMATION/

ADJUSTMENT func-

tion.

SKIA0166E

Push the

″INFO″switch.

SKIA0831E

Push the

″INFO″switch.

SKIA0832E

RGB screen

looks reddish.

Vehicle informa-

tion setting is not

possible.

Clock cannot be

adjusted.

Vehicle informa-

tion screen is

not shown.

Clock cannot be

adjusted.

Vehicle informa-

tion screen is

not shown.

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-69

NAVIGATION SYSTEM

Terminal No. (wire

color)

(+) (–)

37 (R/B) Ground

40 (B) Ground Ground – ON – Approx. 0V –

49 (B/R) Ground

50 (W/R) Ground

Item

Voice guide
ON signal

Communica-

tion signal

(+)

Communica-

tion signal (-)

Signal

input/

output

Output ON

Input/

output

Input/

output

Ignition

switch

ON –

ON –

Condition

Operation

Push the “VOICE”

switch

Reference value

Example of

Only route guide
and operation
guide are not
heard.

SKIA0834E

System does not

work properly.

SKIA0175E

System does not

work properly.

symptom

SKIA0176E

51 Ground Ground – ON – Approx. 0V –

GPS

56 Ground

Terminals and Reference Value for Display Unit AKS003GZ

Terminal No. (wire

color)

(+) (–)

1 (B) Ground

2 (W) Ground

antenna sig-

nal

Item

RGB signal

(R: red)

RGB signal

(G: green)

Input ON

Signal

input/

output

Input ON

Input ON

Ignition

switch

Connector is not

connected.

Condition

Operation

Select “Color ber”

of CONFIRMA­TION/ADJUST­MENT function.

Select “Color ber”

of CONFIRMA­TION/ADJUST­MENT function.

Approx. 5V

Reference value

SKIA0165E

Navigation sys-

tem GPS correc-

tion is not

possible.

Example of

symptom

RGB screen

looks bluish.

RGB screen

looks reddish.

SKIA0166E

Revision; 2004 April 2003 G35 Coupe

AV-70

NAVIGATION SYSTEM

Terminal No. (wire

color)

(+) (–)

3 (R) Ground

4 Ground RGB Ground – ON – Approx. 0V –

7 (P) Ground

8 (L) Ground

Item

RGB signal

(B: blue)

RGB synchro-

nizing si gnal

RGB area sig-

nal

Signal

input/

output

Input ON

Input ON

Input ON

Ignition

switch

Condition

Operation

Select “Color ber”

of CONFIRMA-

TION/ADJUST-

MENT function.

Push the “MAP”

switch.

Push the “D/N”

switch.

Reference value

looks yellowish.

SKIA0167E

SKIA0164E

Example of

symptom

RGB screen

RGB screen is

rolling.

RGB screen is

not shown.

A

B

C

D

E

F

G

H

SKIA0162E

Communica-

13 (R) Ground

tion signal

DISP-SW

(TX)

Output ON

Communica-

14 (B) Ground

15 Ground Ground – ON – Approx. 0V –

16 (SB) Ground

19 (LG) Ground ACC signal Input ACC – Battery voltage

21 (Y) Ground Battery power Input OFF – Battery voltage

22 (B) Ground Ground – ON – Approx. 0V –

23 (Y) Ground Battery power Input OFF – Battery voltage

24 (B) Ground Ground – ON – Approx. 0V –

tion signal

NAVI- DISP

(RX)

Ignition ON

signal

Input ON

Input ON – Battery voltage

Push the “INFO”

switch.

SKIA0835E

Push the “INFO”

switch.

SKIA0832E

Clock cannot

be adjusted.

Vehicle infor-

mation screen

is not shown.

Clock cannot

be adjusted.

Vehicle infor-

mation screen

is not shown.

System does

not work prop-

erly.

System does

not work prop-

erly.

System does

not work prop-

erly.

System does

not work prop-

erly.

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-71

NAVIGATION SYSTEM

Terminals and Reference Value for NAVI Switch AKS003H0

Terminal No. (wire

color)

(+) (–)

1 (LG) Ground ACC signal Input ACC – Battery voltage

2 (R/L) Ground

3(R/Y) Ground

4 (R) Ground

5 (G) Ground

Item

Illumination
signal

Illumination
Ground

Communi­cation signal
DISP-SW
(RX)

Communi­cation signal
SW-NAVI
(TX)

Signal

input/

output

Input OFF

Input ON –

Output ON –

Ignition

switch

– ON – Approx. 0V

Condition

Operation

Lighting switch posi­tion 1st or 2nd

Lighting switch posi­tion OFF

Reference value

Battery voltage

Less than approx. 3V

Example of

symptom

All operations
do not work .

Night illumina­tion for
switches does
not illuminate.

All operations
do not work.

All operations
do not work.

SKIA0835E

All operations
do not work.

6 Ground Ground – ON – Approx. 0V –

7(B) Ground Ground – ON – Approx. 0V

SKIA0831E

All operations
do not work.

Revision; 2004 April 2003 G35 Coupe

AV-72

NAVIGATION SYSTEM

Self-Diagnosis Function AKS003H1

DESCRIPTION

● Diagnosis fu nctio n cons ist s o f th e self- dia gnos is mo de perf or med au tomat ical ly an d th e CONFI RMATION/

ADJUSTMENT mode operated manually.

● Self-diagnosis mode checks for connections between the units constituting this system, analyzes each

individual un it at the same time, and displays the results on the LCD screen.

● CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and

judgment by an operator (trouble that cannot be automatically judged by the system), to check/change the
set value, and to display the History of Errors of the navigation system.

DIAGNOSIS ITEM

Mode Description

● NAVI Control unit diagnosis (DVD-ROM drive will not be diagnosed when no

Self-diagnosis

Display diagnosis

Vehicle signals

CONFIRMATION/
ADJUSTMENT

Navigation

History of Errors

Display Longitude
& Latitude

Speed Calibration

Angle Adj ustment

Initialize Location

map DVD-ROM is in it.).

● Performs diagnosis of each unit and connections between co ntrol uni t and

GPS antenna, as well as between control unit and each uni t.

Color tone and shading of the screen can be checked by the display of a color
bar and a gray scale.

Analyzes the following vehicle signals: Vehicle speed signal, light signal, igni­tion switch signal, and reverse signal.

Display the map. Use the joystick to adjust position. Longitude and latitude will
be displayed.

Under ordinary conditions, the navigation system distance measuring function
will automatically compensate for minute decreases in wheel and tire diameter
caused by tire wear or low pressure. Speed calibra tion i m me dia te ly restores
system accuracy in cases such as when distance calibration is needed
because of the use of tire chains in inclement weather.

Corrects difference between actual turning angle of a vehicle and turni ng
angle of the car mark on the display.

This mode is for initializing the current location. Use when the vehi cle is trans­ported a long distance on a trailer, etc.

Diagnosis results previously stored in the memor y (before turning ignition
switch ON) are displayed in this mode. Time and location when/wher e th e
errors occurred are also displayed.

A

B

C

D

E

F

G

H

I

J

AV

Revision; 2004 April 2003 G35 Coupe

AV-73

L

M

NAVIGATION SYSTEM

Self-Diagnosis Mode AKS003H2

OPERATION PROCEDURE

1. Start the engine.

2. Pus h and hold ″MAP″ and ″D/N″ switches simultaneously for 5
seconds or more.

● Push the ″PREV″ switch and the ini tial syst em screen w ill be

shown.

SKIA1994E

3. The initial trouble diagnosis screen will be shown, and items
“SELF-DIAGNOSIS” and “CONFIRMATION/ADJUSTMENT” will
become select ive.

4. Perform self-diagnosis by selecting the “SELF-DIAGNOSIS”.

● Self-diagnosis subdivision screen will be shown and the oper-

ation enters the self-diagnosis mode.

● A bar graph shown below the self-diagnosis subdivision

screen indicates progress of the diagnosis.

5. O n the “Self diagnosis” screen , each unit name will be col ored
according to the diagnosis result, as follows.

Green : No malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.

● If several malfunctions are presen t in a unit, color of its switch

on the screen wil l be ei th er r e d, y e llo w, or gray , det e r min ed by
the malfunction of the highest priorit y.

● Lines be tween control unit and display o r GPS antenna are

green or yellow based on diagnosis results.

● Lines between control unit and units other than tho s e above are gray regardless of diagnosis results.

SKIA0381E

SKIA0382E

SKIA1995E

Revision; 2004 April 2003 G35 Coupe

AV-74

NAVIGATION SYSTEM

6. Select a switch on the ″Self diagnosis″ screen and comments
for the diagnosis results will be shown.

● When the switch is green, the following comment will be

shown. ″Sel f-dia gnos is w as suc cessf ul. Furt her diagn osis and
adjustments are re commend ed. Follow the ″confirmation and
adjustments″ menu or refer to the service manual.″.

● When the switch is yellow, the following comment will be

shown. ″Connection to t he following unit is malfunction. See
the service manual for further details ″.

● When the switch is red, the following comment will be shown.

″Center Control Unit is malfunction″.

● When the sw itch is gra y, the following comment will be shown. ″Self-diagnosis for DVD-ROM DRIVER

of NAVI was not conducted because no DVD-ROM was available.″.

A

B

C

SKIA2066E

D

SELF–DIAGNOSIS RESULT
Quick Reference Table

1. Select an applicable di agnosis No. in the diagnosis result quick reference table.

2. Find estimated malfunctioning system in th e diagnosis No. table and perform check by referring to the AV
communication line wiring di agram.Refer to AV-66, "

3. Turn the ignitio n switch to OFF and pe rform self-di agnosis again.

Screen switch

Switch color

Red × 1

Grey × 2

Yellow

*1: Center Control unit =NAVI control unit

Center Control unit

× 3
× 4
××5
× × 6
××××7

*1

Display

*2: IMU =Combination meter

CAUTION:

● If display has any error, self-diagnosis cannot start.

● If AV communication between disp lay and NAVI control unit has any error, self-diagnosis cannot

start.

Wiring Diagram —COMM—" .

IMU

*2

GPS antenna

Diagnosis No.

E

F

G

H

I

J

AV

L

Revision; 2004 April 2003 G35 Coupe

AV-75

M

NAVIGATION SYSTEM

Self–Diagnosis Codes

Diagnosis

No.

1 NAVI control unit malfunction
2 NAVI control unit judged no map DVD-ROM is inserted.

When ″DVD-ROM error. Please check disc.″ is shown.

1.Eject map DVD-ROM and check if it is compatible with the system.

3

4

5 Combination meter power sup ply and gro und ci rc uit

6

7

2.Check ejected DVD-ROM for dirt, damage, and warp age.

3.If no error is found, insert a known good map DVD-ROM of the same type and perform self-diagnosis again. If same
result is shown, the NAVI control unit is malfunctioning. If result is normal, the map DVD-ROM is mal funct io nin g.

If ″Error found in DVD-ROM or DVD-ROM driver in control un it. Pleas e perfor m diag nosi s i n acco rdan ce w ith service
manual″ is shown, carry out same inspection as diagnosis No. 3.

GPS antenna system

1.Visually check for a broken wire in the GPS antenna coaxial cable.

2.Disconnect the GPS antenna connector and check that approx imat el y 5V is suppl i ed from N AVI control unit. If not,
the NAVI control unit is inoperative. If the voltage is supplied, replace the GPS antenna and perform self-diagnosis
again. If the same result is shown, the NAVI control unit is inoperative.

AV communication line circuit malfunction.

● Check for short circui t in AV communication line between NAVI control unit and combination meter.

● If no error is found during the abo ve checks, communication circuit in NAVI control unit has a malfunction.

Possible cause

CONFIRMATION/ADJUSTME NT Mode AKS003H3

OPERATION PROCEDURE

1. Start the engine.

2. Pus h and hold ″MAP″ and ″D/N″ switches simultaneously for 5
seconds or more.

● Push the ″PREV″ switch and the ini tial syst em screen w ill be

shown.

3. The initial trouble diagnosis screen will be shown, and items
″SELF-DIAGNOSIS″ and ″CONFIRMATION/ADJUSTMENT″
will become selective.

SKIA1994E

SKIA0381E

Revision; 2004 April 2003 G35 Coupe

AV-76

NAVIGATION SYSTEM

4. When ″CONFIRMATION/ADJUSTMENT″ is selected on the ini­tial trouble diagnosis screen, the operation will enter the CON­FIRMATION/ADJUSTMENT mode. In this mode, check and
adjustment of each item will become possible.

5. Select each switch on ″CONFIRMATION/ADJUS TMENT″
screen to display the relevant diagnosis screen.

DISPLAY DIAGNOSIS

A

B

C

SKIA1996E

D

E

F

G

CAUTION:

When Display Color Spectrum Bar screen is completed after ″PREV″ switch is Pushed, the screen

color changes once. This is normal.

● When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

R (red) signal error : Screen looks bluish.
G (green) signal error : Screen looks reddish.
B (blue) signal error : Screen looks yellowish.

● When the color of th e screen looks unusual , refer to AV-88, " Co lor of RGB Image Is Not Proper (blu ish)"

.AV-89, "Color of RGB Image Is Not Proper (reddish)" .AV-90, "Color of RGB Image Is Not Proper (yellow-

ish)" .

SKIA2251E

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-77

NAVIGATION SYSTEM

VEHICLE SIGNALS

● A comparison check can be made of each actual vehicle signal

and the signals recognized by the system.

Diagnosis item Display Condition Remarks

ON Vehicle speed > 0 km/h (0 MPH)

Vehicle speed

Lights

IGN

Reverse

● If vehicle speed is NG, refer to AV-84, "Vehicle Speed Signal Check" .

● If lights is NG, refer to AV-85, "Illumination Signal Check" .

● If IGN is NG, refer to AV-86, "Ignition Signal Check" .

● If reverse is NG , refer to AV-86, "Reverse Signal Ch eck( With A /T )" .AV-86, "Reverse Signal Check( With M /

T)" .

OFF Vehicle speed = 0 km/h (0 MPH)

- Ignition switch in ACC position

ON Lighting switch ON

OFF Light i ng sw itc h OFF

ON Ignition switch ON

OFF Ignition switch ACC or OFF

ON Selector lever in R-position

OFF Sel ec tor le ver in other than R- posi t ion

- Ignition switch in ACC position

NAVIGATION
Angle Adjustment

● Adjusts turning angle output detected by the gyroscope.

Changes in indication may be delayed by
approx. 1.5 seconds. This is normal.

–

–

Changes in indication may be delayed by
approx. 1.5 seconds. This is normal.

SKIA1997E

SKIA0364E

Revision; 2004 April 2003 G35 Coupe

AV-78

NAVIGATION SYSTEM

Speed Calibration

● During normal driving, distance error caused by tire wear and

tire pressure change is automatically adjusted for by the auto­matic distance correction function. This function, on the other
hand, is for immediate adjustment, in cases such as driving with
tire chain fitted on tires.

A

B

C

HISTORY OF ERRORS

DIAGNOSIS BY HISTORY OF ERRORS

The ″Self-diagnosis″ results indicate whether an error occurred during the period from when the ignition switch
is turned to ON until ″Self-diagnosis″ is completed.
If an error occu rred b efo re th e ig ni tio n switch was turned to O N an d do es n ot o cc ur ag ai n un til the ″Self-diag-
nosis″ is completed, the diagnosis result will be judged normal. Therefore, those errors in the past, which can­not be found by the ″Self-diagnosis″, must be found by diagnosing the ″History of Errors″.
The History of Errors displays the time and place of the most recent occurrence of that error. However, take
note of the following points.

● Correct time of the error occurrence may not be displayed when the GPS antenna substrate within the

NAVI control unit has malfunctioned.

● Place of the error occurrence is represented by the position of the current-location mark at the time when

the error occurred. If the current-location mark has deviated from the correct position, then the place of
the error occur rence max be located correctly.

● The maximum number of occurrences which can be stored is 50. For the 51st and later occurrences, the

displayed numb er remains 50.

When a reproducible malfunction occurred but its cause cannot be identified because several errors are
present, record th e item, number and plac e (longitude/latitude) o f error occurrence (or dele te the History of
Errors), then turn the ignition switch from OFF to ON to reproduce the malfunction. Check the History of Errors
to find the items which show an increased number of occurrences, and diagnose the item.

SKIA0365E

SKIA0366E

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-79

NAVIGATION SYSTEM

Error item

Communications malfunction between NAVI control unit and inter­nal gyro

Gyro sensor
disconnected

● Perform self-diagnosis.

● When the NAVI control unit is judged normal by self-diagnosis,

the symptom may be intermittent, cause d by st ron g radio i nt er­ference.

Communication error between NAVI control unit and internal GPS
substrate

GPS discon­nected

● Perform self-diagnosis.

● When the NAVI control unit is judged normal by self-diagnosis,

the symptom may be intermittent, cause d by st ron g radio i nt er­ference.

Malfunctioning transmission wires to NAVI control unit and internal

GPS substrate
GPS trans­mission cable
malfunction

● Perform self-diagnosis.

● When the NAVI control unit is judged normal by self-diagnosis,

the symptom may be intermittent, cause d by st ron g radio i nt er­ference.

Malfunctioning receiving wires to NAVI control unit and internal

GPS substrate
GPS input
line connec­tion error

● Perform self-diagnosis.

● When the NAVI control unit is judged normal by self-diagnosis,

the symptom may be intermittent, cause d by st ron g radio i nt er­ference.

Oscillating frequency of the GPS substra te freq uency synchroniz-

ing oscillation circuit exceeded (or below) the specification
GPS TCX0
over
GPS TCX0
under

● Perform self-diagnosis.

● When the NAVI control unit is judged normal by self-diagnosis,

the symptom may be intermittent, cause d by st ron g radio i nt er­ference, or the control unit may have been subject ed to exces­sively high or low temperatures.

Contents of ROM (or RAM) in GPS substrate are malfunctioning.
GPS ROM

malfunction
GPS RAM
malfunction

● Perform self-diagnosis.

● When the NAVI control unit is judged normal by self-diagnosis,

the symptom may be intermittent, cause d by st ron g radio i nt er­ference.

Clock IC in GPS substrate is malfunctioning.

● Perform self-diagnosis.

● When the NAVI control unit is judged normal by self-diagnosis,

GPS RTC
malfunction

the symptom may be intermittent, cause d by st ron g radio i nt er­ference.

Malfunctioning connection between GPS substrate in NA VI control

unit and GPS antenna.
GPS antenna

disconnected

● Perform self-diagnosis.

● When connection between NAVI control unit and GPS antenna

is judged normal by self-diagnosis, the sympt om may be inter­mittent, caused by impact or vibration.

Possible causes
Action/symptom

Example of symptom

● Navigation location detection performance

has deteriorated.
(Angular velocity cannot be detecte d. )

● Navigation location detection performance

has deteriorated.
(Location correction using GPS is not per­formed.)

● GPS receiving status re m ain s gra y.

● During self -diagnosis, GPS diagnosis is not

performed.

● Navigation location detection performance

has deteriorated.
(Location correction using GPS is not per­formed.)

● GPS receiving status re m ain s gra y.

● Navigation location detection performance

has deteriorated.
(Location correction using GPS is not per­formed.)

● GPS receiving status re m ain s gra y.

● Location det ect i on acc uracy of the navigation

system will deteriorate, depending on the
failed area in the memory, because GPS can­not make correct positionin g.
(Location correction using GPS is not per­formed.)

● Correct time may not be displayed.

● After the power is turned on, the system

always takes some time until GPS positioni ng
becomes possible. (The GPS receiver starts
positioning without re-collecting the whole sat­ellite information when it judged the data
stored in the receiver is correct.)

● Correct time of error occur re nce m ay not be

stored in the ″History of Errors″.

● Navigation location detection performance

has deteriorated.
(Location correction using GPS is not per­formed.)

● GPS receiving status re m ain s gra y.

Revision; 2004 April 2003 G35 Coupe

AV-80

NAVIGATION SYSTEM

Error item

Low voltage
of GPS

DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response
Error

Possible causes

Action/symptom

The power voltage supplied to the GPS circuit board has

decreased.

● Perform self-diagnosis.

● When connect ion bet w een NAVI control unit and GPS antenna

is judged normal by self-diagnosis, the sympt om ma y be in ter -

mittent, caused by impact or vibration.
Malfunctioning NAVI control unit ­Dedicated map DVD-ROM is in the system, but the data cannot be

read.

● Is map DVD-ROM damaged, warped, or dirty?

– If damaged or warped, the map DVD- R O M is ma lfunc tioni ng.
– If dirty, wipe the DVD-ROM clean with a soft cloth.

● Perform self-diagnosis.

● When NAVI control unit is judged normal by self-diagnosis, the

symptom is judged intermittent, caused by vib rati on.

● Navigation locat io n det ect i on per form ance

has deteriorated.
(Location correction using GPS is not per­formed.)

● GPS receiving status remains gray.

● The map of a particular location cannot be dis-

played.

● Specific guidance information cannot be dis-

played.

● Map display is slo w.

● Guidance information display is slow.

● System has been affected by vibrat io n.

Example o f symptom

A

B

C

D

E

F

G

H

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-81

NAVIGATION SYSTEM

Power Supply and Ground Circuit Check for NAVI Control Unit AKS003H4

1. CHECK FUSE

● Check that the following fuses of the NAVI control unit are not blown.

Terminals

Connector Terminal (wire colo r)

2 (Y)

M57

M58 27 (Y/G) Ignition switch ON or START 12

3 (Y)

6 (LG) Ignition switch ACC or ON 6

Power source Fuse No.

Battery power 37

OK or NG

OK >> GO TO 2.
NG >> If fuse is blown, be su re to e limina te ca se of mal functi on befo re ins t alling new fu se. Refe r to PG-4,

"POWER SUPPLY ROUTING CIRCUIT" .

2. POWER SUPPLY CIRCUIT CHECK

1. Disconnect the NAVI control unit connector.

2. Check voltage between the following harness connector termi­nals and grou nd.

Terminals

(+)

Connector

M57

M58 27 (Y/G ) 0V 0V

Terminal

(wire color)

2 (Y)

3 (Y)

6 (LG) 0V

(-)

Ground

OK or NG

OK >> GO TO 3.
NG >> Check harness for open or short between NAVI control

unit and fuse.

OFF ACC ON

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

SKIA1894E

3. GROUND CIRCUIT CHECK

Check continuity between the following NAVI control unit and
ground.

Terminals

Connector Terminal (wire color)

M57

1 (B)
4 (B)

(-)

Ground Yes

OK or NG

OK > > Inspection end.
NG >> Repair or replace harness.

Revision; 2004 April 2003 G35 Coupe

Continuity(+)

SKIA4037E

AV-82

NAVIGATION SYSTEM

Power Supply and Ground Circuit Check for Display Unit and NAVI Switch AKS003H5

1. CHECK FUSE

Check that the following fuses of the display unit and NAVI switch are not blown.

Terminals

Unit

Display un it M35

NAVI switch M37 1 (LG)

Connector

Terminal

(wire color)

21 (Y)
23 (Y)

19 (LG)

Power source Fuse No.

Battery power 37

Ignition switch ACC or ON 6

OK or NG

OK >> GO TO 2.
NG >> If fuse is b low n, be s ure to e limi n at e ca se o f m al fun ct io n b ef ore in stalling new fu se. Re fer to PG-4,

"POWER SUPPLY ROUTING CIRCUIT" .

2. POWER SUPPLY CIRCUIT CHECK

A

B

C

D

E

F

1. Disconnect display unit and NAVI switch connector.

2. Check voltage between display unit and ground.

Terminals

M35

(+)

Terminal

(wire color)

21 (Y)

23 (Y)

19 (LG) 0V

(-)

Ground

OFF ACC ON

Battery
voltage

Battery
voltage

Unit

Connector

Display
unit

3. Check voltage between NAVI switch and ground.

Terminals

Unit

Connector

NAVI
switch

OK or NG

OK >> GO TO 3.
NG >> Check the following.

● Harness for open or short bet ween display unit and

● Harness for open or sh ort between NAVI switch and fuse

(+)

Terminal

(wire color)

M37 1 (LG) Ground 0V

(-)

OFF ACC ON

fuse

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

Battery
voltage

G

H

I

J

SKIA1896E

AV

L

M

SKIA2006E

Revision; 2004 April 2003 G35 Coupe

AV-83

NAVIGATION SYSTEM

3. GROUND CIRCUIT CHECK

1. Check continuity between display unit and ground.

Terminals

(+)

Unit

Display un it M35

Connector

Terminal

(wire color)

22 (B)
24 (B)

(-)

Ground Yes

2. Check continuity bet ween NAVI switch harness connect or M37 terminal 7 (B) and ground.

Continuity should exist.

OK or NG

OK > > Inspection end.
NG >> Repair or replace harness.

Continuity

SKIA1897E

Ve hicle Speed Signal Check AKS003H6

1. VEHICLE SPEED OPERATION CHECK

Does speed meter is operated normally?
YES or NO

YES >> GO TO 2.

NO >> Check combination meter trouble diagnosis.Refer toDI-13, "

Meter/Gauges Operation and Odo/

Trip Meter" .

2. HARNESS CHECK

1. Turn the ignition switch OFF.

2. Dis connect NAVI control unit connector and c ombination meter
connector.

3. Check continuity between NAVI control unit harness connector
M57 terminal 8 (W/G) and combination meter harness connector
M19 terminal 19 (W/G).

Continuity should exist.

4. Check continuity NAVI control unit harness connector M57 ter­minal 8(W/G) and ground.

Continuity should not exist.

SKIA2007E

SKIA2008E

OK or NG

OK >> GO TO 3.
NG >>

Revision; 2004 April 2003 G35 Coupe

● Check harness for open or short between NAVI control unit and combination meter.

● Check connector housings for disconn ected or loose terminals.

AV-84

NAVIGATION SYSTEM

3. VEHICLE SPEED SIGNAL CHECK 1

1. Connect NAVI control unit connector.

2. Turn the ignition switch ON.

3. Check voltage between NAVI control unit harness connector
M57 terminal 8 (W/G) and ground.

Approx 3.5 V or more

OK or NG

OK >> GO TO 4.
NG >> Replace NAVI control unit.

4. VEHICLE SPEED SIGNAL CHECK 2

1. Connect combination meter connector.

2. Drive vehicle at a constant speed.

3. Check the si gnal between NAVI control unit harn ess connector
M57 terminal 8 (W/G ) and ground with CONSULT-ll or oscillo­scope.

8 (W/G ) – Ground : Refer to AV-68, "Terminals

and Reference Value for
NAVI Control unit" .

OK or NG

OK >> Replace NAVI control unit.
NG >> Check combination meter system. Refer to DI-13, "

.

Meter/Gauges Operation and Odo/Trip Meter"

A

B

C

D

SKIA2009E

E

F

G

H

SKIA3584E

I

Illumination Signal Check AKS003H7

1. TAIL LAMP OPERATION CHECK

When lighting switch turned 1st or 2nd position, does tail lamp illuminate?

YES or NO

Yes >> GO TO 2.
No >> Go to tail lamp trouble diagnosis. Refer to LT-142, "

PARKING, LICENSE PLATE AND TAIL

LAMPS" .

2. ILLUMINATION SIGNAL CHECK

1. Disconnect NAVI control unit connector.

2. Check voltage between NAVI control unit and ground.

Terminals

(+)

Connector

M57 9 (R/L) Ground

Terminal

(wire color)

(-)

OK or NG

OK >> Replace NAVI control unit.
NG >> Check harness for open or short between NAVI control unit and IPDM E/R.Refer to LT-196, "

ing Diagram — ILL —" .

Lighting switch

position

1st or 2nd posi-

tion

OFF

Voltage (V)

Battery voltage

Less than

approx. 2V

J

AV

L

M

SKIA3585E

Wir-

Revision; 2004 April 2003 G35 Coupe

AV-85

NAVIGATION SYSTEM

Ignition Signal Check AKS003H8

1. IGNITION SIGNAL CHECK

1. Disconnect the NAVI control unit connector.

2. Turn the ignition switch ON.

3. Check voltage between NAVI control unit and ground.

Terminals

(+)

Connector

M58 27(Y/G) Ground Battery voltage Approx. 0V

Terminal

(wire color)

(-)

Ignition switch position

ON OFF

OK or NG

OK >> Replace NAVI control unit.
NG >> Check harness for open or short between NAVI control

SKIA3586E

unit and fuse.

Reverse Signal Check(With A/T) AKS003H9

1. REVERSE LAMP CHECK

1. Turn the ignition switch ON.

2. With the A/T selector lever in R-position. Is the indicator turned on?
YES or NO

YES >> GO TO 2.
NO >> Check back up lamp sys tem.Refer to LT-139, "

BACK-UP LAMP" .

2. REVERSE SIGNAL CHECK

1. With the A/T selector lever in R-position.

2. Check voltage between NAVI control unit and ground.

Terminals

Connector

M57 11(OR) Ground

(+)

Terminal

(wire color)

(-)

A/T selector lever

position

R-position Battery voltage

Other than R-

position

Voltage (V)

Less than

approx. 3V

OK or NG

OK >> Replace NAVI control unit.
NG >> Harness for open or short between NAVI control unit and back-up lamp relay.

Reverse Signal Check(With M/T) AKS004C8

1. REVERSE LAMP CHECK

1. Turn the ignition switch ON.

2. With the shift lever in R-position . Are reverse ra mps turned on?
YES or NO

YES >> GO TO 2.
NO >> Check back up lamp sys tem.Refer to LT-139, "

BACK-UP LAMP" .

SKIA2014E

Revision; 2004 April 2003 G35 Coupe

AV-86

NAVIGATION SYSTEM

2. REVERSE SIGNAL CHECK

1. With the shift lever in R-position.

2. Check voltage between NAVI control unit and ground.

Terminals

(+)

Connector

M57 11(OR) Ground

Terminal

(wire color)

OK or NG

(-)

Shift lever posi-

tion

R-position Battery voltage

Other than R-

position

Voltage (V)

Less than

approx. 3V

SKIA2014E

OK >> Replace NAVI control unit.
NG >> Harness for open or short between NAVI control unit and back-up lamp switch.

RGB Screen Is Not Shown AKS003HA

1. HARNESS CHECK

1. Turn the ignition switch OFF.

2. Disconnect NA V I cont ro l un it conn ec to r and di spl ay un it con nec ­tor.

3. Check continuity between NAVI control unit harness connector
M57 terminal 14 (L) and Display UNIT harness connector M35
terminal 8 (L).

A

B

C

D

E

F

G

H

Continuity should exist.

4. Check continuity between NAVI control unit harness connector
M57 terminal 14 (L) and ground.

Continuity should not exist.

OK or NG

OK >> GO TO 2.
NG >> Repair harness or connector.

2. RGB AREA SIGNAL CHECK

1. Connect NAVI control unit connector and display unit connector.

2. Turn ignition switch ON.

3. Push “INFO” switch.

4. Check the sign al between NAVI control unit connec tor M57 ter­minals 14(L) and 17 with CO NSU LT-ll or oscilloscope.

Terminals

(+) (-)

Connector

M57 14 (L) M57 17

Terminal

(wire color)

Connector

(Wire color)

OK or NG

OK >> Replace display unit.
NG >> Replace NAVI control unit.

Terminal

voltage (v)

Refer to AV-68, "

and Reference Value for

NAVI Control unit" .

Terminals

SKIA2020E

SKIA4043E

I

J

AV

L

M

Revision; 2004 April 2003 G35 Coupe

AV-87

NAVIGATION SYSTEM

Color of RGB Image Is Not Proper (bluish) AKS003HB

1. RGB HARNESS CHECK

1. Turn the ignition switch OFF.

2. Disconnect NAVI control unit connector and display unit connector.

3. Check continuity betwee n NAVI control unit and display unit.

4. Check continuity betwee n NAVI control unit and ground.

● When the s creen looks bluish

Terminals

NAVI control unit Display unit

Connector

M57

Connector Terminal (wire color)

M57

Terminal

(wire color)

18 (B)

17 4

Connector

M35

Terminals

18 (B)

17

OK or NG

OK >> GO TO 2.
NG >> Repair harness or connector.

Terminal

(wire color)

1 (B)

(-)

Ground No

Continuity

Yes

ContinuityNAVI control unit (+)

SKIA2022E

2. RGB SIGNAL CHECK

1. Connect NAVI control unit connector and display unit connector.

2. Turn the ignition switch ON.

3. Display ″Color bar″ by″CONFIRMATION/ADJUSTMENT″ mode.

4. Che ck the signal between NAVI control unit terminal 18 (B) and
17 with CONSULT-ll or oscilloscope.

● When the s creen looks bluish.

Terminals

Connector Terminal (wire color) Connector Terminal

M57 18 (B) M57 17

OK or NG

OK >> Replace display unit.
NG >> Replace NAVI contr ol unit.

Voltage (v)NAVI control unit (+) NAVI control unit (-)

Refer to AV-68, "

Value for NAVI Control unit" .

Terminals and Reference

SKIA4629E

Revision; 2004 April 2003 G35 Coupe

AV-88

NAVIGATION SYSTEM

Color of RGB Image Is Not Proper (reddish) AKS005S6

1. RGB HARNESS CHECK

1. Turn the ignition switch OFF.

2. Disconnect NAVI control unit connector and display unit connector.

3. Check continuity between NAVI control unit and display unit.

4. Check continuity between NAVI control unit and ground.

● When the screen looks redd ish.

Terminals

NAVI control unit Display unit

Connector

M57

Terminal

(wire color)

21 (W)

17 4

Connector

M35

Terminal

(wire color)

2 (W)

Continuity

Yes

A

B

C

D

E

Terminals

ContinuityNAVI control unit(+)

Connector Terminal (wire color)

M57

21 (W)

17

(-)

Ground No

OK or NG

OK >> GO TO 2.
NG >> Repair harness or connector.

2. RGB SIGNAL CHECK

1. Connect NAVI control unit connector and display unit connector.

2. Turn the ignition switch ON.

3. Display ″Color bar″ by″CONFIRMATION/ADJUSTMENT″ mode.

4. Check the signal between NAVI control unit terminal 21(W) and
17 with CONSULT-ll or oscilloscope.

F

SKIA2023E

G

H

I

J

AV

L

SKIA4630E

M

● When the screen looks redd ish.

Terminals

Voltage (v)NAVI control unit (+) NAVI control unit (-)

Connector Terminal (wire color) Connector Terminal

M57 21 (W) M57 17

Refer to AV-68, "

Value for NAVI Control unit" .

Terminals and Reference

OK or NG

OK >> Replace display unit.
NG >> Replace NAVI control unit.

Revision; 2004 April 2003 G35 Coupe

AV-89

NAVIGATION SYSTEM

Color of RGB Image Is Not Proper (yellowish) AKS005S7

1. RGB HARNESS CHECK

1. Turn the ignition switch OFF.

2. Disconnect NAVI control unit connector and display unit connector.

3. Check continuity betwee n NAVI control unit and display unit.

4. Check continuity betwee n NAVI control unit and ground.

● When the s creen looks ye llowish.

Terminals

NAVI control unit Display unit

Connector

M57

Connector Terminal (wire color)

M57

Terminal

(wire color)

15 (R)

17 4

Connector

M35

Terminals

15 (R)

17

OK or NG

OK >> GO TO 2.
NG >> Repair harness or connector.

Terminal

(wire color)

3 (R)

(-)

Ground No

Continuity

Yes

ContinuityNAVI control unit(+)

SKIA2024E

2. RGB SIGNAL CHECK

1. Connect NAVI control unit connector and display unit connector.

2. Turn the ignition switch ON.

3. Display ″Color bar″ by″CONFIRMATION/ADJUSTMENT″ mode.

4. Check the signal between NAVI control unit terminal 15(R) and
17 with CONSULT-ll or oscilloscope.

● When the s creen looks ye llowish.

Terminals

Connector Terminal (wire color) Connector Terminal

M57 15 (R) M57 17

OK or NG

OK >> Replace display unit.
NG >> Replace NAVI contr ol unit.

Voltage (v)NAVI control unit (+) NAVI control unit (-)

Refer to AV-68, "

Value for NAVI Control unit" .

Terminals and Reference

SKIA4631E

Revision; 2004 April 2003 G35 Coupe

AV-90

NAVIGATION SYSTEM

RGB Screen Is Rolling AKS003HC

1. RGB SYNCHRONIZING CIRCUIT CHECK

1. Turn the ignition switch OFF.

2. Disconnect NAVI control unit connector and display unit connector.

3. Check continuity between NAVI control unit and display unit.

Terminals

NAVI control unit Display unit

Connector

M57

Terminal

(wire color)

20 (P)

17 4

Connector

M35

Terminal

(wire color)

7 (P)

4. Check continuity between NAVI control unit and ground.

Continuity

Yes

A

B

C

D

E

Terminals

ContinuityNAVI control unit (+)

Connector Terminal (wire color)

M57

20 (P)

17

(-)

Ground No

OK or NG

OK >> GO TO 2.
NG >> Repair harness or connector.

2. RGB SYNCHRONIZING SIGNAL CHECK

1. Connect NAVI control unit connector and display unit connector.

2. Turn the ignition switch ON.

3. Push the ″MAP″ switch.

4. Check the si gnal between NAVI control unit harn ess connector

M57 terminals 20(P) and 17 with CONSULT-ll or oscilloscope.

20 (P) - 17 Refer to AV-68, "Terminals

and Reference V alue for
NAVI Control unit" .

OK or NG

OK >> Replace display unit.
NG >> Replace NAVI control unit.

SKIA2026E

F

G

H

I

J

AV

L

SKIA3233E

M

Revision; 2004 April 2003 G35 Coupe

AV-91

NAVIGATION SYSTEM

Guide Sound Is Not Heard AKS003HD

1. CHECK VOICE GUIDE SETTING.

● While driving in the dark pink route, voice guide does not operate. (note)

● Is volume setting not switched ON?

NOTE:

Vo ice g uide is onl y av ailab le at int ers ectio ns th at sa tis fy ce rt ain c ondi tions (in dica ted by

● on the map). Th ere-

fore, guidance may not be given even when the route on the map change s direction.
YES or NO

YES >> GO TO 2.
NO >> Switch the setting ON and turn the volume up.

2. VOICE GUIDE HARNESS CHECK

1. Turn the ignition switch OFF.

2. Disconnect NAVI control unit connector and audio unit connector.

3. Check continuity betwee n NAVI control unit and audio unit

Terminals

NAVI control unit (+) Audio unit (-)

Connector

M57

M58 37 (R/ B) 24 (R/B)

Terminal

(wire color)

12 (L/W)

Connector

M39

Terminal

(wire color)

32 (L/W)

4. Check continuity betwee n NAVI control unit and ground.

Continuity

Yes13 (W/B) 30 (W/B)

Terminals

Connector Terminal (wire color)

M57

M58 37 (R/B)

OK or NG

OK >> GO TO 3.
NG >>

● Check harness for open or short between NAVI con-

trol unit and audio unit

● Chec k connector housin gs for disconnect ed or loose

terminals.

12 (L/W)

(-)

Ground No13 (W/B)

ContinuityNAVI control unit(+)

SKIA2029E

Revision; 2004 April 2003 G35 Coupe

AV-92

NAVIGATION SYSTEM

3. VOICE GUIDE ON SIGNAL CHECK

1. Connect NAVI control unit connector and audio unit connector.

2. Turn ignition switch ON.

3. Push ″VOICE″ switch.

4. Check the si gnal between NAVI control unit harn ess connector
M58 terminal 37 (R /B) and ground with CONSULT-ll or oscillo­scope.

37(R/B)–Ground : Refer to AV-68, "

Termi­nals and Reference Value
for NAVI Control unit" .

OK or NG

OK >> GO TO 4.
NG >> Replace NAVI control unit.

4. VOICE GUIDE SIGNAL CHECK

1. Push the ″VOICE″ switch.

2. Check the signal between NAVI control unit and ground with
CONSULT-ll or oscilloscope.

Terminals

(+)

Connector

M57

Terminal

(wire color)

12 (L/W)
13 (W/B)

Ground

Ok or NG

OK >> Replace audio unit.
NG >> Replace NAVI control unit

(–)

Reference Signal

Refer to AV-68, "

nals and Reference Value
for NA VI Contr o l unit" .

Termi-

A

B

C

D

SKIA2027E

E

F

G

H

I

SKIA2028E

J

AV

Revision; 2004 April 2003 G35 Coupe

AV-93

L

M

NAVIGATION SYSTEM

Beep at Start-Up, No Display Appears on Screen. AKS003HE

1. COMMUNICATION LINE CHECK1

1. Disconnect NAVI control unit connector, display unit connector and NAVI switch connector.

2. Check the following.

– Continuity between NAVI control unit and displ ay unit.

Terminals

NAVI control unit Display unit

Connector

M58

– Continuity between NAVI control unit harness connector M58

Terminal

(Wire color)

35 (B)

31 15

Connector

M35

Terminal

(Wire color)

14 (B)

terminal 33 (G), an d NAVI switch harness connecto r M37 termi­nal 5 (G).

Continuity should exist.

Continuity

Yes

SKIA2032E

– Continuity between NAVI cont rol unit and ground.

Terminals

Connector

M58

(+)

Terminal

(Wire color)

35 (B)

(–)

31

Ground No33 (G)

Continuity

OK or NG

OK >> GO TO 2.
NG >> Repair harness or connector.

2. COMMUNICATION LINE CHECK2

Check the following.

● Continuity between display unit harness connector M35 terminal

13(R) and NAVI switch harness connect or M37 terminal 4(R).

Continuity should exist.

● Continuity between display unit harness connector M35 terminal

13(R) and ground.

SKIA2033E

SKIA2034E

Continuity should not exist.

OK or NG

OK >> GO TO 3.
NG >> Repair harness or connector.

Revision; 2004 April 2003 G35 Coupe

AV-94

SKIA2245E

NAVIGATION SYSTEM

3. COMMUNICATION SIGNAL (DISP–NAVI) CHECK

1. Connect NAVI control unit connector.

2. Turn ignition switch ON.

3. Check voltage between NAVI control unit harness connector
M58 terminal 33 (G) and ground.

Approx. 2.8V

OK or NG

OK >> GO TO 4.
NG >> Replace NAVI control unit.

4. COMMUNICATION SIGNAL (NAVI–DISP) CHECK

1. Disconnect N AVI control unit and conn ect display unit conn ec­tor.

2. Turn ignition switch ON.

3. Check voltage between NAVI control unit harness connector
M58 terminal 35 (B) and ground.

Approx. 3.5V

OK or NG

OK >> GO TO 5.
NG >> Replace display unit.

A

B

C

D

SKIA2039E

E

F

G

H

SKIA2040E

5. COMMUNICATION SIGNAL (DISP–SW) CHECK

Check voltage between display unit harness connector M35 terminal
13 (R) and ground.

Approx. 5V

OK or NG

OK >> GO TO 6.
NG >> Replace display unit.

6. COMMUNICATION SIGNAL (DISP–NAVI) CHECK

1. Connect NAVI control unit connector and NAVI switch connector.

2. Push the ″INFO″ switch.

3. Turn ignition switch ON.

4. Check the si gnal between NAVI control unit harn ess connector
M58 terminal 33 (G) and 31with CONSULT-ll or oscilloscope.

33 (G)– 31 : Refer to AV-68, "Terminals and

Reference Value for NAVI Con­trol unit" .

I

J

AV

L

SKIA2041E

M

OK or NG

OK >> GO TO 7.
NG >> Replace NAVI control unit.

Revision; 2004 April 2003 G35 Coupe

AV-95

SKIA2042E

NAVIGATION SYSTEM

7. COMMUNICATION SIGNAL (NAVI–DISP) CHECK

1. Push ″INFO″ switch.

2. Check the signal between NAVI control unit harness connector
M58 terminal 35 (B) and 31with CONSULT-ll or oscilloscope.

35 (B)–31 : Refer toAV-68, "

Reference Value for NAVI Con­trol unit" .

OK or NG

OK >> GO TO 8.
NG >> Replace display unit.

Terminals and

8. COMMUNICATION SIGNAL (DISP–SW) CHECK

1. Check the signal between NAVI switch harness connector M37
terminal 4 (R ) and ground wit h CONSULT-ll or osc illoscope.

4 (R) – Ground : Refer toAV-72, "Terminals and Ref-

erence Value for NAVI Switch" .

SKIA2043E

OK or NG

OK >> Replace display unit.
NG >> Replace NAVI contr ol unit.

Display Quality Control Cannot Change Screen AKS003HF

1. SYMPTOM CHECK

Do other systems operate normally?
YES or NO

YES >> Replace display unit.
NO >> Check symptom agai n.

No Fuel Information Is Displayed AKS003HG

1. SELF-DIAGNOSIS CHECK

Perform self-diagnosis. Refer to AV-74, "
Is self-diagnosis resu lt OK?

YES >> GO TO 2.
NO >> Check applicable parts.

Self-Diagnosis Mode" .

2. COMBINATION METER CHECK

SKIA2044E

Using CONSULT-ll select “ECM SELF-DIAGNOSIS” to check CAN communication between ECM and combi­nation meter.Refer to EC-75, "

OK or NG

OK >> Replace combination meter.
NG >> Check applicable parts.

Revision; 2004 April 2003 G35 Coupe

TROUBLE DIAGNOSIS" .

AV-96

NAVIGATION SYSTEM

Vehicle Condition Setting Is Not Possible. AKS003HH

1. VEHICLE SPEED SIGNAL CHECK

A

Check vehicle speed signal check. Refer to AV-78, "
OK or NG

OK >> Replace NAVI control unit.
NG >> Check combination meter system. Refer to DI-13, "

.

VEHICLE SIGNALS" .

Meter/Gauges Operation and Odo/Trip Meter"

No Warning Message Is Displayed (Combination Meter Of Warning Lamp Illumi­nate)

1. DISPLAY CONDITION CHECK

Check display conditions of each warning screen.

Warning screen Display condition

Parking brake drag, door ajar
Fuel level is low Vehicle drives approximately 20 km (12 MPH) after meter warning lamp turns on.

Other than above. Meter warning lamp lights up.

>> GO TO 2

When parking brake or door switch is ON and vehicle speed is more than 5 km/h
(3 MPH)

2. SELF-DIAGNOSIS CHECK

● Perform self- diagnosis. Refer to AV-74, "Self-Diagnosis Mode" .

Is self-diagnosis result OK?

YES >> Replace combination meter.
NO >> Check applicable parts.

Navigation System does not activate AKS003HJ

1. POWER SUPPLY AND GROUND CIRCUIT CHECK

Check power supply and ground circuit. Refer to AV-8 2 , "

Control Unit" .

OK or NG

OK >> Replace NAVI control unit
NG >> Power supply an d ground circuit check

Power Supply and Gro und Circuit Check for NAVI

AKS003HI

B

C

D

E

F

G

H

I

J

AV

L

Previous Conditions Are Not Stored. AKS003HK

1. BATTERY POWER CHECK

● Check NAVI control unit batte ry power. Refer to AV-82, "Power Supply and Ground Circuit Check for NAVI

Control Unit" .

OK or NG

OK >> Replace NAVI control unit.
NG >> Check harness fo r open or short between NAVI control unit and fuse.

Revision; 2004 April 2003 G35 Coupe

AV-97

M

NAVIGATION SYSTEM

The Position of The Current-Location Mark Is Not Correct. AKS003HL

1. SELF-DIAGNOSIS

● ″Self-diagnosis mode″ of the self-diagnosis function. Refer to AV-74, "Self-Diagnosis Mode" .

OK or NG

OK >> GO TO 2.
NG >> Check the applicable parts.

2. HISTORY OF ERRORS DIAGNOSIS

● Wa s any error stored in AV-79, "HISTORY OF ERRORS" of the CONFIRMATION/ADJUSTMENT mode?

YES or NO

YES >> AV- 79, "HISTORY OF ERRORS".
NO >> AV-98, "

Driving Test".

Radio Wave From The GPS Satellite Is Not Received. AKS003HM

1. ENVIRONMENT CHECK

● Check if any metal object that intercepts radio waves or an object that emits radio waves (such as a porta-

ble phone) is located near th e GPS antenna. Check if the vehicle is shielded by a building.

OK or NG

OK >> ● System is no rmal.

The GPS ante nna may n ot be abl e to re cei ve ra di o wa ve s f ro m t h e GPS s at ell it e if i t i s s hiel de d
by metal object or an object emitting radi o waves is placed near it.

NG >> GO TO 2.

2. SELF-DIAGNOSIS

● Perform self-diagnosis function. Refer to AV-74, "Self-Diagnosis Mode " .

OK or NG

OK >> Replace GPS antenna.
NG >> Check the applicable parts.

Driving Test AKS003HN

1. DRIVING TEST 1

1. Scroll the map screen to display the area to make correction. Push ″ENTER″ and select ″CURRENT
LOCATION CORRECTION″.

2. Correct direction of the vehicle mark.

3. Perform the distance correction of the CONFIRMATION/ADJUSTMENT mode.

NOTE:

Normally, adjustment is not necessar y because this system has autom atic distance correction functio n.
However, when a tire chain is fitted, adjustment in accordance with the tire diameter ratio must be made.

4. Are symptoms applicable to the AV-9 9 , "
driving the vehicle?

YES or NO

YES >> Limit of the location detection capacity of the navigation system
NO >> GO TO 2.

Example of Symptoms Judged Not Malfunction" present after

Revision; 2004 April 2003 G35 Coupe

AV-98

NAVIGATION SYSTEM

2. DRIVING TEST 2

● Did any malfunction occur when the proper test in the following test patterns is performed?

● Test pattern

Driving test f inds the difference betwe en the symptoms monitored with an d without each se nsor.

– Test pattern 1: Test method with no GPS location correction

Disconnect th e GP S ante nna c onn ector conn ecte d to t he N AVI control unit. Accura tely a djus t the curre nt
position and the dir ec tio n, the n dri ve the vehicle.

– Test pattern 2: Test method with no map-matching

Accurately adjust the current position and the direction. Eject the map DVD-ROM from the NAVI control
unit with the ign ition switc h tu rned to OF F, then drive the veh icle. Af ter drivi ng, ins ert th e ma p DVD-RO M
back in the unit, display the track of the vehicle on the map screen and compare it with the actual road
configuration.

● Sample tests

– <To determine if the current -location m ark ski ps at the same positio n, if so, wh ether it i s cause d by map-

matching or by GPS>
Perform test pattern 1.

– <To determine if the pattern of str eets displayed is correct or not>

Perform test pattern 1and 2.
Compare the track of the vehicle on the map screen and the actual road configuration. For fairly accurate
tracking, plotting shall be made every sever al hundred mete rs.

– <When the distance is adjusted accurately>

Perform test pattern 1and 2.
Drive on a road of wh ich d ist an ce is accura tel y known (by utili zing dis ta nce p ost s on a high way) . Calc ulat e
the rate of change (increased/decreased) of the distance by comparing with the actual distance.
Correction = A/B
A: Distance shown on the screen
B: Actual distance

YES or NO

YES >> ● If adjustment is insufficient, perform adjustment again.

● If any error is found in the map, please let us know.

NO >> Limit of the location detection capacity of the navigation system

● Replac e NAVI control unit

A

B

C

D

E

F

G

H

I

J

AV

Example of Symptoms Judged Not Malfunction AKS003HO

BASIC OPERATION

Symptom Cause Remedy

No image is shown. Display brightness adjustment is set fully to

DARK side.

No guide sound is heard.
Audio guide volume is too low or
too high.

Screen is too dark.
Motion of the image is too slow.

Small black or bright spots appear
on the screen.

Revision; 2004 April 2003 G35 Coupe

Volume control is set to OFF, MIN or MAX. Adjust the audio guide volume.
Audio guidance is not available while the vehicle

is driving on a dark pink route.
Temperature inside the vehicle is low. Wait until the temperature inside the vehicl e

Symptom peculiar to a liquid crystal display. System is not malfunction.

AV-99

Adjust the display brightness.

System is not malfunction.

reaches the proper temperature.

L

M

NAVIGATION SYSTEM

VEHICLE MARK

Symptom Cause Remedy

Map screen and bird view ™Name
of the place vary with the screen.

Vehicle mark is not positioned cor­rectly.

Screen will not switch to nighttime
mode after the lighting switch is
turned ON.

Map screen will not scroll in accor­dance with the vehicle travel.

Vehicle mark will not be shown. Current location is not displayed. Push ″MAP″ switch to display the curren t

Accuracy indicator (GPS satellite
mark) on the map screen stays
gray.

Vehicle location accuracy is low. Accuracy indicator (GPS satellite mark) on the

Some thinning of the character data is done to
prevent the display becoming to complex . In
some cases and in some locations, the displ ay
contents may differ .
The same place name, street na m e, etc. may not
be displayed every time on account of the data
processing.

Vehicle is transferred by ferry or by towing after its
ignition switch is turned to OFF.

The daytime screen is selected by the ″SWITCH
SCREENS″ when the last time the screen dim­ming setting is done.
Switching between daytime/nighttime screen may
be inhibited by the automatic illumination adj ust ­ment function.

Current location is not displayed. Push ″MAP″ switch to display the current

GPS satellite signal is intercepted because the
vehicle is in or behind a building.

GPS satellite signal cannot be received because
an obstacle is placed on top of the display.

GPS satellites are located badly. Wait until the location becomes better.

map screen stays gray.
Vehicle speed setting by the vehicle speed pulse

has been deviated (advanced or retarded) from
the actual vehicle speed because tire chain i s fit­ted or the system has been used on another vehi­cle.

Map data has error or omission. (Vehicle mark is
always deviated to the same position.)

System is not malfunction.

Drive the vehicle for a while in the GPS sat­ellite signal receiving condition.

Perform screen dimming and select the
nighttime screen by ″SW ITCH SCREENS″.

location.

location.
Move the vehicle out to an open space.

Do not place anything in the center on top of
the display.

Current location is not determined.

Drive the vehicle for a while {for approx. 30
minutes at approx. 30 km/h(19MPH)} and
the deviation will be automatically adjuste d.
If advancement or retard still occur, perform
the distance adjustment by CONFIRMA­TION/ADJUSTMENT mode of diagnosis
function.

As a rule, an updated map DVD-ROM will be
released once a year.

DESTINATION, PASSING POINTS, AND MENU ITEMS CANNOT BE SELECTED/SET.

Symptom Cause Remedy
Destination cannot be set. Dest i nat ion to be se t is on an exPus hw ay. Set the destination on an ordinary road.
Passing point is not searched

when re-searching the route.

Route information will not be dis­played.

After th e route s earchi ng, no guide
sign will appear as the vehicle
goes near the entrance/exit to the
toll road.

Automatic route searching is not
possible.

Revision; 2004 April 2003 G35 Coupe

The vehicle has already passed the passing point,
or the system judged so.

Route searching has not been done. Set the destination and pe rform ro ute

Vehicle mark is not on the recommended route. Drive on the recommended route.
Route guide is turned OFF. Turn the route guide ON.
Route information is not available on the dark pink

route.
Vehicle mark is not on the recommended route.

(On the display, only guide signs related to the
recommended route will be shown.)

Ve hi cl e is dr iv in g on a hi gh wa y ( gr ay ro u te ), or no
recommended route is available.

T o i nclude the passing points that have been
passed into the route again, set the route
again.

searching.

System is not malfunction.

Drive on the recommended route.

Drive on a road to be searched. Or re­search the route manually. In this case, how­ever, the whole route will be searched.

AV-100