Page 1
Edition: July 2008
Revision: October 2008
Publication No. SM9E-1D40U0
All rights reserved. No part
of this Service Manual may
be reproduced or stored in a
retrieval system, or transmitted in any form, or by any
means, electronic, mechanical, photo-copying, recording or otherwise, without the
prior written permission of
Nissan North America, Inc.
QUICK REFERENCE INDEX
A
GENERAL INFORMATION
B ENGINE
C HYBRID
D TRANSMISSION & DRIVE-
LINE
E SUSPENSION
F BRAKES
G STEERING
H RESTRAINTS
I VENTILATION, HEATER &
AIR CONDITIONER
J BODY INTERIOR
K BODY EXTERIOR,
DOORS, ROOF & VEHICLE
SECURITY
L DRIVER CONTROLS
M ELECTRICAL & POWER
CONTROL
N DRIVER INFORMATION &
MULTIMEDIA
O CRUISE CONTROL
P MAINTENANCE
GI
General Information
EM
Engine Mechanical
LU
Engine Lubrication System
CO
Engine Cooling System
EC
Engine Control System
FL
Fuel System
EX
Exhaust System
STR
Starting System
ACC
Accelerator Control System
HBC
Hybrid Control System
HBB
Hybrid Battery System
CL
Clutch
TM
Transaxle & Transmission
DLN
Driveline
FAX
Front Axle
RAX
Rear Axle
FSU
Front Suspension
RSU
Rear Suspension
SCS
Suspension Control System
WT
Road Wheels & Tires
BR
Brake System
PB
Parking Brake System
BRC
Brake Control System
ST
Steering System
STC
Steering Control System
SB
Seat Belt
SBC
Seat Belt Control System
SR
SRS Airbag
SRC
SRS Airbag Control System
VTL
Ventilation System
HA
Heater & Air Conditioning System
HAC
Heater & Air Conditioning Control System
INT
Interior
IP
Instrument Panel
SE
Seat
ADP
Autodrive Positioner System
AP
Adjustable Pedals
DLK
Door & Lock
SEC
Security Control System
GW
Glass & Window System
PWC
Power Window Control System
RF
Roof
EXT
Exterior
BRM
Body Repair Manual
MIR
Mirrors
EXL
Exterior Lighting System
INL
Interior Lighting System
WW
Wiper & Washer
DEF
Defogger
HRN
Horn
PWO
Power Outlet
BCS
Body Control System
LAN
LAN System
PCS
Power Control System
CHG
Charging System
PG
Power Supply, Ground & Circuit Elements
MWI
Meter, Warning Lamp & Indicator
WCS
Warning Chime System
SN
Sonar System
AV
Audio, Visual & Navigation System
CCS
Cruise Control System
MA
Maintenance
A
B
C
D
E
F
G
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FOREWORD
This manual contains maintenance and repair procedure for the 2009
NISSAN FRONTIER.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifications and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.
Page 3
PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!
Your comments are important to NISSAN and will help us to improve our Service Manuals.
Use this form to report any issues or comments you may have regarding our Service Manuals.
Please print this form and type or write your comments below. Mail or fax to:
Nissan North America, Inc.
Technical Service Information
39001 Sunrise Drive, P.O. Box 9200
Farmington Hills, MI USA 48331
FAX: (248) 488-3910
SERVICE MANUAL: Model: Year:
PUBLICATION NO. (Refer to Quick Reference Index ):
Please describe any Service Manual issues or problems in detail:
Page number(s)
Note: Please include a copy of each page, marked with your comments.
Are the trouble diagnosis procedures logical and easy to use? (circle your answer) YES NO
If no, what page number(s)?
Please describe the issue or problem in detail:
Is the organization of the manual clear and easy to follow? (circle your answer) YES NO
Please comment:
What information should be included in NISSAN Service Manuals to better support you in servicing or
repairing customer vehicles?
Note: Please include a copy of each page, marked with your comments.
DATE: YOUR NAME: POSITION:
DEALER: DEALER NO.: ADDRESS:
CITY: STATE/PROV./COUNTRY: ZIP/POSTAL CODE:
Page 4
QUICK REFERENCE CHART - FRONTIER
2009
QUICK REFERENCE CHART - FRONTIER
Engine Tune-up Data - QR25DE INFOID:0000000004553658
GENERAL SPECIFICATIONS
Cylinder arrangement In-line 4
Displacement
Bore and stroke mm (in) 89.0 x 100.0 (3.504 x 3.937)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression ratio 9.5
Compression pressure
kPa (kg/cm
2
, psi) / 250 rpm
Compression 2
Oil 1
Standard 1,304 (13.3, 189)
Minimum 1,108 (11.3, 161)
Differential limit between cylinders 100 (1.0, 14)
cm
3
(cu in)
2,488 (151.82)
DRIVE BELT
Tension of drive belt Auto adjustment by auto-tensioner
SPARK PLUG
Make NGK
Standard type PLZKAR6A–11
Gap (nominal) 1.1 mm (0.043 in)
Engine Tune-up Data - VQ40DE
INFOID:0000000004553657
GENERAL SPECIFICATIONS
Cylinder arrangement V-6
3
Displacement cm
Bore and stroke mm (in) 95.5 × 92.0 (3.76 × 3.622)
Valve arrangement DOHC
Firing order 1-2-3-4-5-6
Number of piston rings
Number of main bearings 4
Compression ratio 9.7
Co mpre ssion press ure k Pa
2
(kg/cm
, psi)/300 rpm
(cu in)
Compression 2
Oil 1
Standard 1,275 (13.0, 185)
Minimum 981 (10.0, 142)
Differential limit between cylinders 98 (1.0, 14)
3,954 (241.30)
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QUICK REFERENCE CHART - FRONTIER
Cylinder number
Valve timing
(Intake valve timing control - “OFF”)
2009
SEM713A
PBIC0187E
Unit: degree
abcde f
244 240 −464 6 58
DRIVE BELT
Tension of drive belts Auto adjustment by auto tensioner
SPARK PLUG
Application United States and Canada Mexico
Make NGK
Standard type DILFR5A-11 PLFR5A-11
Gap (nominal) 1.1 mm (0.043 in)
Front Wheel Alignment (Unladen*1)*6 INFOID:0000000004553656
Drive type 2WD 4WD
Minimum -0° 30′ (-0.50°)-0° 15′ (-0.25°)
Camber
Degree minute (decimal degree)
Caster
Degree minute (decimal degree)
Kingpin inclination
Degree minute (decimal degree)
Nominal 0° 15′ (0.25°)0° 30′ (0.50°)
Maximum 1° 0′ (1.00°)1° 15′ (1.25°)
Cross camber 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Minimum 2° 15′ (2.25°)2° 0′ (2.00°)
Nominal 3° 0′ (3.00°)2° 45′ (2.75°)
Maximum 3° 45′ (3.75°)3° 30′ (3.50)
Cross caster 0° 45′ (0.75°
Nominal 13° 0′ (13.00°)12° 45′ (12.75°)
) or less 0° 45′ (0.75°) or less
Page 6
QUICK REFERENCE CHART - FRONTIER
2009
Drive type 2WD 4WD
SFA234AC
2.1 mm (0.08 in) 2.1 mm (0.08 in)
Distance (A − B)
To t a l t oe - in
Angle (left wheel or right wheel)
Degree minute (Decimal degree)
Inside
Degree minute (Decimal degree)
Wheel turning angle (full turn)
Outside
Degree minute (Decimal degree)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 35° 26′ (35.43°)
*3: Target value 31° 22′ (31.37°)
*4: Target value 35° 36′ (35.60°)
*5: Target value 31° 44′ (31.73°)
*6: Some vehicles may be equipped with straight (non-adjustable) lower link bolts and washers. In order to adjust camber and caster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers.
3.1 mm (0.12 in) 3.1 mm (0.12 in)
4.1 mm (0.16 in) 4.1 mm (0.16 in)
0° 5′ (0.08°)0° 5′ (0.08°)
0° 7′ (0.12°)0° 7′ (0.12°)
0° 9′ (0.15°)0° 9′ (0.15°)
33° 26′ – 35° 26′ *
(33.43° – 35.43°)
29° 22′ – 31° 22′ *
(29.37° – 31.37°)
2
3
33° 36′ – 35° 36′ *
(33.60° – 35.60°)
29° 44′ – 31° 44′ *
(29.73° – 31.73°)
4
5
General Specification (Rear) INFOID:0000000004553654
Suspension type Rigid axle with semi-elliptic leaf springs
Shock absorber type Double-acting hydraulic
Wheelarch Height (Unladen*1) INFOID:0000000004553655
King Cab
Unit: mm (in)
LEIA0085E
Engine type QR25DE VQ40DE
Drive type 2WD 4WD
Page 7
QUICK REFERENCE CHART - FRONTIER
2009
Tire size
Front wheelarch height (Hf)
Rear wheelarch height (Hr)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Crew Cab
Engine type VQ40DE
Drive type 2WD 4WD
Tire size 265/70R16 265/75R16 265/65R18 265/70R16 265/75R16 265/65R18
Front wheelarch height (Hf)
Rear wheelarch height (Hr)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
235/
75R15
850
(33.46)
878
(34.57)
265/70R16
865
(34.06)
887
(34.92)
868
(34.17)
895
(35.24)
867
(34.13)
892
(35.12)
265/
75R16
880
(34.65)
907
(35.71)
879
(34.61)
904
(35.59)
65R18
(34.13)
(35.16)
866
(34.09)
892
(35.12)
265/
867
893
265/
70R16
881
(34.68)
904
(35.59)
879
(34.61)
905
(35.63)
265/
75R16
893
(35.16)
917
(36.10)
LEIA0085E
891
(35.08)
918
(36.14)
265/
65R18
881
(34.68)
903
(35.55)
Unit: mm (in)
879
(34.61)
905
(35.63)
Brake Specification INFOID:0000000004553652
Unit: mm (in)
Engine Type QR25DE VQ40DE
Front brake Brake model CLZ33VA
Rotor outer diameter × thickness 283 × 28 (11.142 × 1.102) 296 × 28 (11.654 × 1.102)
Pad Length × width × thickness 140 × 49 × 10 (5.51 × 1.93 × 0.39)
Cylinder bore diameter (each) 46.4 (1.83)
Rear brake Brake model CLZ14VA
Rotor outer diameter × thickness 286 × 18 (11.260 × 0.709)
Pad length × width × thickness 87.6 × 35.5 × 11.0 (3.449 × 1.398 × 0.433)
Cylinder bore diameter 38.1 (1.50)
Control valve Valve model Electric brake force distribution
Brake booster Booster model C215T
Diaphragm diameter 215 (8.465)
Page 8
QUICK REFERENCE CHART - FRONTIER
Z
2009
Brake Pedal
INFOID:0000000004553653
Unit: mm (in)
AWFIA0433Z
Pedal free height (H)
Pedal full stroke (S)
[Depressed under a force of 490 N (50 kg, 110 lb) with engine running]
Clearance between pedal stopper and threaded end of stop lamp switch and ASCD switch (C
M/T 174.7 (6.88)
A/T 182.1 (7.17)
153 (6.02)
1) or (C2) 0.74 - 1.96 (0.029 - 0.077)
Front Disc Brake INFOID:0000000004553650
Unit: mm (in)
Engine type QR25DE / VQ40DE
Brake model CLZ33VA
Brake pad
Disc rotor
Standard thickness (new) 10.0 (0.394)
Repair limit thickness 2.0 (0.079)
Standard thickness (new) 28.0 (1.102)
Repair limit thickness 26.0 (1.024)
Maximum uneven wear (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.05 (0.0020)
Rear Disc Brake INFOID:0000000004553651
Unit: mm (in)
Engine type QR25DE / VQ40DE
Brake model CLZ14VA
Brake pad
Standard thickness (new) 11.0 (0.433)
Repair limit thickness 2.0 (0.079)
Page 9
QUICK REFERENCE CHART - FRONTIER
2009
Engine type QR25DE / VQ40DE
Brake model CLZ14VA
Standard thickness (new) 18.0 (0.709)
Disc rotor
Repair limit thickness 16.0 (0.630)
Maximum uneven wear (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.05 (0.0020)
Fluids and Lubricants INFOID:0000000004553649
QR25DE
Description
Fuel
Engine oil
Drain and refill
Dry engine (engine overhaul)
Cooling system
Automatic transmission fluid (ATF)
Manual transmission fluid (MTF)
(5 M/T)
Rear final drive oil C200
Power steering fluid (PSF)
Brake and clutch fluids — — —
Brake grease — — —
Brake pad plate grease — — —
Multi-purpose grease — — —
Windshield washer fluid
Air conditioning system refrigerant 0.70 ± 0.05 kg 1.54 ± 0.11 lb 1.54 ± 0.11 lb
Air conditioning system oil
With oil filter change
Without oil filter change
With reservoir at MAX
level
Metric US measure Imp measure
80
4.6
4.3
5.0
9.4
10.3
2.89
1.6
1.0
4.5
180 m
Capacity (Approximate)
21-1/8 gal 17-5/8 gal
4 7/8 qt 4 qt
4-1/2 qt 3-3/4 qt
5-1/4 qt 4-3/8 qt
10 qt 8-1/4 qt
10-7/8 qt 9-1/8 qt
6-1/8 pt 5-1/8 pt
3-3/8 pt 2-7/8 pt
2-1/8 pt 1-3/4 pt
1-1/4 gal 1 gal
6.1 fl oz 6.3 fl oz
VQ40DE
Description
Fuel
Engine oil
Drain and refill
Dry engine (engine overhaul)
Cooling system
Automatic transmission fluid (ATF)
Manual transmission fluid
(MTF)
(6 M/T)
With oil filter change
Without oil filter
change
With reservoir at MAX
level
2WD
4WD
Capacity (Approximate)
Metric US measure Imp measure
80
5.1
4.8
6.3
10.2
10.3
3.98
4.18
21-1/8 gal 17-5/8 gal
5-3/8 qt 4-1/2 qt
5-1/8 qt 4-1/4 qt
6-5/8 qt 5-1/2 qt
10-3/4 qt 9 qt
10-7/8 qt 9-1/8 qt
8-3/8 pt 7 pt
8-7/8 pt 7-3/8 pt
Page 10
QUICK REFERENCE CHART - FRONTIER
2009
Description
C200
Rear final drive oil
M226
Transfer fluid TX15B
Front final drive oil
Power steering fluid (PSF)
Brake and clutch fluid — — —
Brake grease — — —
Brake pad plate grease — — —
Multi-purpose grease — — —
Windshield washer fluid
A/C system refrigerant 0.70 ± 0.05 kg 1.54 ± 0.11 lb 1.54 ± 0.11 lb
A/C system oil
Metric US measure Imp measure
1.6
2.01
2.0
0.85
1.0
4.5
180 m
Capacity (Approximate)
3-3/8 pt 2-7/8 pt
4-1/4 pt 3 1/2 pt
2 1/8 qt 1-3/4 qt
1-3/4 pt 1-1/2 pt
2-1/8 pt 1-3/4 pt
1-1/4 gal 1 gal
6.1 fl oz 6.3 fl oz
Page 11
ENGINE
Revision: October 2008
2009 Frontier
A
ACC
SECTION ACC
ACCELERATOR CONTROL SYSTEM
CONTENTS
PRECAUTION ...............................................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restrain t System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
REMOVAL AND INSTALLATION ................3
ACCELERATOR CONTROL SYSTEM ............... 3
Component ................... ............................................ 3
Removal and Installation .......................................... 3
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................5
2
SERVICE DATA AND SPECIFICATIONS
(SDS) ..................................................................
Accelerator Control ................................................... 5
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PRECAUTIONS
Revision: October 2008
2009 Frontier
< PRECAUTION >
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004054197
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs 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 SR and SB section of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death 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, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
ACC-2
Page 13
ACCELERATOR CONTROL SYSTEM
Revision: October 2008
2009 Frontier
< REMOVAL AND INSTALLATION >
REMOVAL AND INSTALLATION
ACCELERATOR CONTROL SYSTEM
Component INFOID:0000000004054198
A
ACC
C
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G
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WBIA0594E
1. Accelerator pedal assembly
CAUTION:
• Do not disassemble the accelerator pedal assembly.
• Do not remove the accelerator pedal position sensor from the accelerator pedal bracket.
• Avoid damage from dropping the accelerator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
Removal and Installation INFOID:0000000004054199
REMOVAL
1. Disconnect the negative battery terminal.
2. Disconnect the accelerator position sensor electrical connector.
a. Pull the connector lock back to unlock the connector from the
accelerator pedal position sensor as shown.
b. Pull up on the connector to disconnect it from the accelerator
pedal position sensor as shown.
3. Remove the two upper and one lower accelerator pedal nuts.
4. Remove the accelerator pedal assembly.
CAUTION:
• Do not disassemble the accelerator pedal assembly.
• Do not remove the accelerator pedal position sensor from
the accelerator pedal bracket.
• Avoid damage from dropping the accelerator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
LBIA0333E
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ACC-3
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ACCELERATOR CONTROL SYSTEM
Revision: October 2008
2009 Frontier
< REMOVAL AND INSTALLATION >
INSTALLATION
Installation is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
• Check that the accelerator pedal moves smoothly within the specified range.
Accelerator pedal - total pedal
applied stroke “A”
• Check that the accelerator pedal smoothly returns to the original
position.
• Perform an electrical inspection of the accelerator pedal position
sensor. Refer to EC-190, "Component Inspection"
652, "Component Inspection" (VQ40DE).
CAUTION:
When the harness connector of the accelerator pedal position
sensor is disconnected, perform ″Accelerator Pedal Released Position Learning″. Refer to EC-24,
"Accelerator Pedal Released Position Learning" (QR25DE), EC-475, "Accelerator Pedal Released
Position Learning" (VQ40DE).
: 48 mm (1.89 in)
(QR25DE), EC-
LBIA0434E
ACC-4
Page 15
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: October 2008
2009 Frontier
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Accelerator Control INFOID:0000000004054200
ACCELERATOR PEDAL
Unit: mm (in)
LBIA0434E
Accelerator pedal - total pedal applied stroke “A” 48 (1.89)
A
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DRIVER INFORMATION & MULTIMEDIA
Revision: October 2008
2009 Frontier
A
B
SECTION AV
AUDIO, VISUAL & NAVIGATION SYSTEM
CONTENTS
BASE AUDIO
BASIC INSPECTION ....................................
DIAGNOSIS AND REPAIR WORKFLOW .......... 5
Work Flow .................................................................5
FUNCTION DIAGNOSIS ............................... 7
AUDIO SYSTEM .................................................. 7
System Diagram ........................................................7
System Description ...................................................7
Component Parts Location . .......................................8
Component Description ................................ .... .........8
COMPONENT DIAGNOSIS ..........................9
Symptom Table .......................................................24
NORMAL OPERATING CONDITION ...............25
5
Description ....................... ........................................25
PRECAUTION ..............................................26
PRECAUTIONS .................................................26
Precaution for Supplemental Restraint Syste m
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
PREPARATION ...........................................27
PREPARATION .................................................27
Commercial Service Tools .......................................27
26
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POWER SUPPLY AND GROUND CIRCUIT .......9
AUDIO UNIT ......................... .... ... ... ... ..........................9
AUDIO UNIT : Diagnosis Procedure .........................9
FRONT DOOR SPEAKER .................................10
Description ..............................................................10
Diagnosis Procedure .......... .... .................................10
FRONT TWEETER .............................................12
Description ..............................................................12
Diagnosis Procedure .......... .... .................................12
REAR DOOR SPEAKER ....................................14
Description ..............................................................14
Diagnosis Procedure .......... .... .................................14
ECU DIAGNOSIS .........................................16
AUDIO UNIT .......................................................16
Reference Value .....................................................16
Wiring Diagram .......................................................18
SYMPTOM DIAGNOSIS ..............................24
AUDIO SYSTEM .................................................24
ON-VEHICLE REPAIR .................................28
AUDIO UNIT ......................................................28
Removal and Installation .........................................28
FRONT TWEETER ............................................29
Removal and Installation .........................................29
FRONT DOOR SPEAKER ................................30
Removal and Installation .........................................30
REAR DOOR SPEAKER ..................................31
Removal and Installation .........................................31
AUDIO ANTENNA .............................................32
Location of Audio Antenna System Component ......32
Removal and Installation .........................................32
PREMIUM AUDIO (KING CAB)
BASIC INSPECTION ...................................33
DIAGNOSIS AND REPAIR WORKFLOW ........33
Work Flow ................................................................33
FUNCTION DIAGNOSIS ..............................35
AUDIO SYSTEM ...............................................35
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System Diagram ............................................... ...... 35
Revision: October 2008
2009 Frontier
System Description ................................................. 35
Component Parts Location ..................................... 36
Component Description .......................................... 37
HANDS-FREE PHONE SYSTEM ...................... 38
System Diagram ............................................... ...... 38
System Description ................................................. 38
Component Parts Location ..................................... 39
Component Description .......................................... 40
DIAGNOSIS SYSTEM (AUDIO UNIT) ...............41
Component Function Check ................................... 41
SATELLITE RADIO TUNER : Description ..............58
SATELLITE RADIO TUNER : Diagnosis Proce-
dure ............................... ..........................................
58
MICROPHONE SIGNAL CIRCUIT .................... 60
Description ..............................................................60
Diagnosis Procedure ..... ... .......................................60
ECU DIAGNOSIS .......................................62
AUDIO UNIT ...................................................... 62
Reference Value .....................................................62
Wiring Diagram .......................................................65
DIAGNOSIS SYSTEM (BLUETOOTH CON-
TROL UNIT) .......................................................
Diagnosis Description ............................................. 42
Work Flow ........ ... .... ...................................... .... ...... 42
42
COMPONENT DIAGNOSIS ........................ 43
POWER SUPPLY AND GROUND CIRCUIT ..... 43
AUDIO UNIT .............................................................. 43
AUDIO UNIT : Diagnosis Procedure ................ ...... 43
SATELLITE RADIO TUNER ..................................... 43
SATELLITE RADIO TUNER : Diagnosis Proce-
dure ........................................................................
BLUETOOTH CONTROL UNIT ................................ 44
BLUETOOTH CONTROL UNIT : Diagnosis Pro-
cedure ........................... .......................... ................
MICROPHONE ...................... .................................... 45
MICROPHONE : Diagnosis Procedure ................... 45
FRONT DOOR SPEAKER ................................. 47
Description ....................... .......................... ............. 47
Diagnosis Procedure .............................................. 47
FRONT TWEETER ............................................ 49
Description ....................... .......................... ............. 49
Diagnosis Procedure .............................................. 49
43
44
SATELLITE RADIO TUNER .............................. 76
Reference Value .....................................................76
BLUETOOTH CONTROL UNIT ......................... 78
Reference Value .....................................................78
SYMPTOM DIAGNOSIS ............................ 80
AUDIO SYSTEM ................................................ 80
Symptom Table .......................................................80
NORMAL OPERATING CONDITION ................ 81
Description ..............................................................81
PRECAUTION ............................................ 82
PRECAUTIONS ................................................. 82
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................. ....................................
82
PREPARATION .......................................... 83
PREPARATION ................................................. 83
Commercial Service Tools ......................................83
ON-VEHICLE REPAIR ...............................84
AUDIO UNIT ...................................................... 84
Removal and Installation ..................................... ....84
REAR DOOR SPEAKER ...................................51
Description ....................... .......................... ............. 51
Diagnosis Procedure .............................................. 51
STEERING SWITCH .......................................... 53
Description ....................... .......................... ............. 53
Diagnosis Procedure .............................................. 53
COMMUNICATION SIGNAL CIRCUIT ..............55
SATELLITE RADIO TUNER ..................................... 55
SATELLITE RADIO TUNER : Description . ... .... ...... 55
SATELLITE RADIO TUNER : Diagnosis Proce-
dure ........................................................................
SOUND SIGNAL CIRCUIT ................................58
SATELLITE RADIO TUNER ..................................... 58
FRONT TWEETER ............................................ 85
Removal and Installation ..................................... ....85
FRONT DOOR SPEAKER ................................. 86
Removal and Installation ..................................... ....86
REAR DOOR SPEAKER ................................... 87
Removal and Installation ..................................... ....87
STEERING SWITCH .......................................... 88
Removal and Installation ..................................... ....88
TEL ANTENNA .................................................. 89
55
Removal and Installation ..................................... ....89
BLUETOOTH CONTROL UNIT ......................... 90
Removal and Installation ..................................... ....90
MICROPHONE .................................................. 92
AV-2
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Removal and Installation ........ ... ..............................
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92
AUDIO ANTENNA ..............................................93
Location of Antenna ................................................93
Removal and Installation ........ ... ..............................93
SATELLITE RADIO ANTENNA .........................95
Removal and Installation ........ ... ..............................95
SATELLITE RADIO TUNER ..............................96
Removal and Installation ........ ... ..............................96
PREMIUM AUDIO (CREW CAB)
BASIC INSPECTION ...................................97
DIAGNOSIS AND REPAIR WORKFLOW .........97
Work Flow ...............................................................97
Diagnosis Procedure .............................................112
FRONT TWEETER ..........................................115
Description ....................... ......................................115
Diagnosis Procedure .............................................115
REAR DOOR SPEAKER ................................118
Description ....................... ......................................118
Diagnosis Procedure .............................................118
REAR DOOR TWEETER ................................121
Description ....................... ......................................121
Diagnosis Procedure .............................................121
SUBWOOFER ................................................. 124
Description ....................... ......................................124
Diagnosis Procedure .............................................124
A
B
C
D
E
FUNCTION DIAGNOSIS ..............................99
AUDIO SYSTEM .................................................99
System Diagram ......................................................99
System Description .................................................99
Component Parts Location . ...................................100
Component Description ................................ .... .....101
HANDS-FREE PHONE SYSTEM .....................102
System Diagram ....................................................102
System Description ...............................................102
Component Parts Location . ...................................103
Component Description ................................ .... .....104
DIAGNOSIS SYSTEM (AUDIO UNIT) ..............105
Component Function Check ..................................105
DIAGNOSIS SYSTEM (BLUETOOTH CON-
TROL UNIT) ......................................................
Diagnosis Description ............................... ............106
Work Flow .............................................................106
106
COMPONENT DIAGNOSIS .......................107
POWER SUPPLY AND GROUND CIRCUIT ....107
AUDIO UNIT ......................... .... ... ... ... ......................107
AUDIO UNIT : Diagnosis Procedure .....................107
SATELLITE RADIO TUNER ....................................107
SATELLITE RADIO TUNER : Diagnosis Proce-
dure .................................................................. .....
AUDIO AMP ....... ....................................... ... ... .... .....108
AUDIO AMP : Diagnosis Procedure ......................108
BLUETOOTH CONTROL UNIT ...............................109
BLUETOOTH CONTROL UNIT : Diagnosis Pro-
cedure ...................................................................
MICROPHONE ........................................................110
MICROPHONE : Diagnosis Procedure .................110
107
109
AMP ON SIGNAL CIRCUIT ............................127
Description ....................... ......................................127
Diagnosis Procedure .............................................127
STEERING SWITCH .......................................128
Description ....................... ......................................128
Diagnosis Procedure .............................................128
COMMUNICATION SIGNAL CIRCUIT ...........130
SATELLITE RADIO TUNER ....................................130
SATELLITE RADIO TUNER : Description .............130
SATELLITE RADIO TUNER : Diagnosis Proce-
dure .......................................................................
130
SOUND SIGNAL CIRCUIT .............................. 133
SATELLITE RADIO TUNER ....................................133
SATELLITE RADIO TUNER : Description .............133
SATELLITE RADIO TUNER : Diagnosis Proce-
dure .......................................................................
133
MICROPHONE SIGNAL CIRCUIT ..................135
Description ....................... ......................................135
Diagnosis Procedure .............................................135
ECU DIAGNOSIS ....................................... 137
AUDIO UNIT ....................................................137
Reference Value ....................................................137
Wiring Diagram .......................... ... ... ......................140
AUDIO AMP ....................................................154
Reference Value ....................................................154
SATELLITE RADIO TUNER ...........................157
Reference Value ....................................................157
BLUETOOTH CONTROL UNIT ......................159
Reference Value ....................................................159
SYMPTOM DIAGNOSIS ............................161
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FRONT DOOR SPEAKER ...............................112
Description ............................................................112
AUDIO SYSTEM .............................................161
Symptom Table .....................................................161
AV-3
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NORMAL OPERATING CONDITION .............. 162
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Description ....................... .......................... ............162
PRECAUTION ............................................163
Removal and Installation ..................................... .. 169
REAR DOOR TWEETER ..................................170
Removal and Installation ..................................... .. 170
PRECAUTIONS ............................................... 163
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................. ................. ..................
163
PREPARATION ..........................................164
PREPARATION ............................................... 164
Commercial Service Tools ................................ .....164
ON-VEHICLE REPAIR ...............................165
AUDIO UNIT .................................................... 165
Removal and Installation .......................................165
AUDIO AMP ..................................................... 166
Removal and Installation .......................................166
FRONT TWEETER .......................................... 167
Removal and Installation .......................................167
FRONT DOOR SPEAKER ............................... 168
Removal and Installation .......................................168
REAR DOOR SPEAKER ................................. 169
STEERING SWITCH .........................................171
Removal and Installation ..................................... .. 171
SUBWOOFER ..................................................172
Removal and Installation ..................................... .. 172
TEL ANTENNA .................................................173
Removal and Installation ..................................... .. 173
BLUETOOTH CONTROL UNIT ........................174
Removal and Installation ..................................... .. 174
MICROPHONE .................................................176
Removal and Installation ..................................... .. 176
AUDIO ANTENNA ............................................ 177
Location of Antenna .............................................. 177
Removal and Installation ..................................... .. 177
SATELLITE RADIO ANTENNA .......................179
Removal and Installation ..................................... .. 179
SATELLITE RADIO TUNER .............................180
Removal and Installation ..................................... .. 180
AV-4
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DIAGNOSIS AND REPAIR WORKFLOW
[BASE AUDIO]
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000004057017
OVERALL SEQUENCE
A
B
C
D
E
F
G
H
ALNIA0182GB
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the condition and the environment when the
incident/malfunction occurred).
>> GO TO 2
2.CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition
when the symptom is detected.
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3.DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
>> GO TO 3
AV-5
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DIAGNOSIS AND REPAIR WORKFLOW
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2009 Frontier
< BASIC INSPECTION >
Is malfunctioning part detected?
YES >> GO TO 4
NO >> GO TO 2
4.REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure.
>> GO TO 5
5.FINAL CHECK
Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Has the symptom been repaired?
YES >> Inspection End.
NO >> GO TO 2
[BASE AUDIO]
AV-6
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< FUNCTION DIAGNOSIS >
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AUDIO SYSTEM
[BASE AUDIO]
FUNCTION DIAGNOSIS
AUDIO SYSTEM
System Diagram INFOID:0000000004057018
AWNIA0788G
System Description INFOID:0000000004057019
AUDIO SYSTEM
The audio system consists of the following components
• Audio unit
• Rod antenna
• Front door speakers
• Front tweeters
• Rear door speakers
When the audio system is on, radio signals are received by the rod antenna. The audio unit then sends audio
signals to the front door speakers, front tweeters and rear door speakers.
Refer to Owner's Manual for audio system operating instructions.
A
B
C
D
E
F
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AV-7
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< FUNCTION DIAGNOSIS >
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AUDIO SYSTEM
[BASE AUDIO]
Component Parts Location
INFOID:0000000004057020
AWNIA1797Z
1. Front tweeter (crew cab)
LH M109
RH M111
4. Rear door speaker (crew cab)
LH D207
RH D307
2. Audio unit M43 3. Front door speaker
LH D12
RH D112
5. Rear door speaker (king cab)
LH B76
RH B160
Component Description INFOID:0000000004057021
Part name Description
Audio unit Controls audio system functions
Front door speakers
Front tweeters
Rear door speakers
• Outputs audio signal from audio unit
• Outputs high, mid and low range sounds
• Outputs audio signal from audio unit
• Outputs high range sounds
• Outputs audio signal from audio unit
• Outputs high, mid and low range sounds
AV-8
Page 24
POWER SUPPLY AND GROUND CIRCUIT
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2009 Frontier
< COMPONENT DIAGNOSIS >
[BASE AUDIO]
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure INFOID:0000000004057022
1.CHECK FUSES
Check that the following fuses of the audio unit are not are not blown.
Unit Terminals Signal name Fuse No.
Audio unit
Are the fuses OK?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect audio unit connector M43.
2. Check voltage between the audio unit connector M43 ground.
(+)
Connector Terminal
7Ground0V
M43
19 Ground
(-) OFF ACC ON
Are the voltage results as specified?
YES >> GO TO 3
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
19 Battery power 29
7 Ignition switch ACC or ON 4
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
ALNIA0674GB
A
B
C
D
E
F
G
H
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K
Inspect audio unit case ground.
Does case ground pass inspection?
YES >> Inspection end.
NO >> Repair audio unit case ground.
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AV-9
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FRONT DOOR SPEAKER
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< COMPONENT DIAGNOSIS >
[BASE AUDIO]
FRONT DOOR SPEAKER
Description INFOID:0000000004057023
The audio unit sends audio signals to the front door speakers using the front door speaker circuits.
Diagnosis Procedure INFOID:0000000004057024
1.HARNESS CHECK
1. Disconnect audio unit connector M43 and suspect speaker connector.
2. Check continuity between audio unit harness connector M43 (A)
terminal and suspect speaker harness connector (B) terminal.
AB
Connector Terminal Connector Terminal
M43
2
32
11
12 2
D12
D112
1
1
Continuity
Yes
3. Check continuity between audio unit harness connector M43 (A)
terminal and ground.
A
Connector Terminal
2
M43
3
11
12
—Continuity
Ground No
Are continuity results as specified?
YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.FRONT SPEAKER SIGNAL CHECK
AWNIA0031Z
AV-10
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FRONT DOOR SPEAKER
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< COMPONENT DIAGNOSIS >
1. Connect audio unit connector M43 and front speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M43
terminals with CONSULT-III or oscilloscope.
(+) (-)
Con-
nector
M43
Terminal Terminal
23
11 12
Is the audio signal voltage as specified?
YES >> Replace speaker. Refer to AV-30, "Removal and Instal-
lation".
NO >> Replace audio unit. Refer to AV-28, "Removal and
Installation".
Condition Reference signal
Receive
audio signal
SKIA0177E
[BASE AUDIO]
A
B
C
D
E
F
G
AWNIA0032Z
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AV-11
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FRONT TWEETER
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< COMPONENT DIAGNOSIS >
[BASE AUDIO]
FRONT TWEETER
Description INFOID:0000000004057025
The audio unit sends audio signals to the front tweeters using the front tweeter circuits.
Diagnosis Procedure INFOID:0000000004057026
1.HARNESS CHECK
1. Disconnect audio unit connector M43 and suspect front tweeter
connector.
2. Check continuity between audio unit harness connector M43 (A)
and suspect front tweeter harness connector (B).
AB
Connector Terminal Connector Terminal
M43
2
32
11
12 2
M109
M111
1
1
Continuity
Yes
3. Check continuity between audio unit harness connector M43 (A)
and ground.
A
Connector Terminal
2
M43
3
11
12
—Continuity
Ground No
Are the continuity results as specified?
YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.FRONT TWEETER SIGNAL CHECK
AWNIA0031Z
AV-12
Page 28
FRONT TWEETER
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< COMPONENT DIAGNOSIS >
1. Connect audio unit connector M43 and front tweeter connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M43
terminals with CONSULT-III or oscilloscope.
(+) (-)
Con-
nector
M43
Terminal Terminal
23
11 12
Is the audio signal voltage as specified?
YES >> Replace the suspect front tweeter. Refer to AV-29,
"Removal and Installation".
NO >> Replace audio unit. Refer to AV-28, "Removal and
Installation".
Condition Reference signal
Receive
audio signal
SKIA0177E
[BASE AUDIO]
A
B
C
D
E
F
G
AWNIA0032Z
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AV-13
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REAR DOOR SPEAKER
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< COMPONENT DIAGNOSIS >
[BASE AUDIO]
REAR DOOR SPEAKER
Description INFOID:0000000004057027
The audio unit sends audio signals to the rear door speakers using the rear door speaker circuits.
Diagnosis Procedure INFOID:0000000004057028
1.HARNESS CHECK
1. Disconnect audio unit connector M43 and suspect rear door
speaker connector.
2. Check continuity between audio unit harness connector M43 (A)
and suspect rear door speaker harness connector (B).
A B
Connector Terminal Connector Terminal
M43
4
52
13
14 2
D207 (crew cab)
B76 (king cab)
D307 (crew cab)
B160 (king cab)
1
1
Continuity
Yes
3. Check continuity between audio unit harness connector M43 (A)
and ground.
A
Connector Terminal
4
M43
5
13
14
—Continuity
Ground No
Are the continuity results as specified?
YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.REAR DOOR SPEAKER SIGNAL CHECK
AWNIA0033Z
AV-14
Page 30
REAR DOOR SPEAKER
Z
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
1. Connect audio unit connector and rear door speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M43
terminals with CONSULT-III or oscilloscope.
(+) (-)
Connector
M43
Termi-
nal
13 14
Terminal
45
Is the audio signal voltage as specified?
YES >> Replace the suspect rear door speaker. Refer to AV-31,
"Removal and Installation".
NO >> Replace audio unit. Refer to AV-28, "Removal and
Installation".
Condition Reference signal
Receive
audio signal
SKIA0177E
[BASE AUDIO]
A
B
C
D
E
F
G
AWNIA0034Z
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AV-15
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AUDIO UNIT
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< ECU DIAGNOSIS >
[BASE AUDIO]
ECU DIAGNOSIS
AUDIO UNIT
Reference Value INFOID:0000000004057029
TERMINAL LAYOUT
AWNIA1774Z
PHYSICAL VALUES
Terminal
(Wire color)
+ – Signal name
2
(BR)
4
(G)
7
(G/B)
8
(GR)
9
(R)
Ground ACC power supply Input
Ground ILL control Input
Ground Light switch Input
Sound signal front door
3
speaker and front tweeter LHOutput
(L)
5
Sound signal rear door
(B)
speaker LH
Description
Input/
Output
Output
Condition
Ignition
switch ONAudio output
Ignition
switch ONAudio output
Ignition
switch
ACC or
ON
Ignition
switch
ACC or
ON
Ignition
switch
ACC or
ON
Reference value
(Approx.)
SKIB3609E
SKIB3609E
— Battery voltage
—0V
— Battery voltage
AV-16
Page 32
< ECU DIAGNOSIS >
Revision: October 2008
2009 Frontier
AUDIO UNIT
[BASE AUDIO]
Terminal
(Wire color)
+ – Signal name
11
(LG)
13
(GR)
19
(Y)
Ground Battery power supply Input
Sound signal front door
12
speaker and front tweeter RHOutput
(R)
14
Sound signal rear door
(O)
speaker RH
Description
Input/
Output
Output
Condition
Ignition
switch ONVoice output
Ignition
switch ONVoice output
Ignition
switch
OFF
Reference value
(Approx.)
— Battery voltage
SKIB3609E
SKIB3609E
A
B
C
D
E
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AV-17
Page 33
< ECU DIAGNOSIS >
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AUDIO UNIT
[BASE AUDIO]
Wiring Diagram
INFOID:0000000004057030
ABNWA0165G
AV-18
Page 34
< ECU DIAGNOSIS >
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2009 Frontier
AUDIO UNIT
[BASE AUDIO]
A
B
C
D
E
F
G
H
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AV
O
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L
ABNIA0511G
P
AV-19
Page 35
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[BASE AUDIO]
ABNIA0512G
AV-20
Page 36
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[BASE AUDIO]
A
B
C
D
E
F
G
H
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AV
O
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ABNIA0513G
P
AV-21
Page 37
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[BASE AUDIO]
ABNIA0514G
AV-22
Page 38
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[BASE AUDIO]
A
B
C
D
E
F
G
H
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AV
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AANIA0054G
P
AV-23
Page 39
AUDIO SYSTEM
Revision: October 2008
2009 Frontier
< SYMPTOM DIAGNOSIS >
[BASE AUDIO]
SYMPTOM DIAGNOSIS
AUDIO SYSTEM
Symptom Table INFOID:0000000004057031
AUDIO SYSTEM
Symptom Possible cause Reference page
Inoperative
All speakers do not sound
One or several speakers do not sound
CD
Symptom Possible cause Reference page
CD cannot be inserted.
CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.
• Audio unit power circuit
• Audio unit
• Audio unit
• Audio unit power circuit
• Front door speaker
• Front tweeter
• Rear door speaker
Audio unit AV-9
• AV-9
• AV-9
• AV-10
• AV-12
• AV-14
AV-24
Page 40
< SYMPTOM DIAGNOSIS >
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2009 Frontier
NORMAL OPERATING CONDITION
[BASE AUDIO]
NORMAL OPERATING CONDITION
Description INFOID:0000000004057032
The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference,
etc.).
NOISE
The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
• Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings blocking the signal.
• 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 mountains or buildings.
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and operation 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
Occurs only when engine is ON.
The occurrence of the noise is linked with the operation of the fuel pump. • 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 vehicle is being driven, especially when
it is vibrating excessively.
A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.
A cracking or snapping sound occurs with the operation of various switches.
The noise occurs when various motors are operating.
• Ignition components
• Relay malfunction, audio unit malfunction
• Motor case ground
•Motor
• Rear defogger coil malfunction
• Open circuit in printed heater
• Poor ground of antenna feeder line
• Ground wire of body parts
• Ground due to improper part installation
• Wiring connections or a short circuit
A
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D
E
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AV-25
Page 41
PRECAUTIONS
Revision: October 2008
2009 Frontier
< PRECAUTION >
[BASE AUDIO]
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004057033
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs 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 SR and SB section of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death 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, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
AV-26
Page 42
< PREPARATION >
Revision: October 2008
2009 Frontier
PREPARATION
[BASE AUDIO]
PREPARATION
PREPARATION
Commercial Service Tools INFOID:0000000004057034
Tool name Description
Loosening bolts and nuts
Power tool
PBIC0191E
A
B
C
D
E
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AV-27
Page 43
AUDIO UNIT
Revision: October 2008
2009 Frontier
< ON-VEHICLE REPAIR >
[BASE AUDIO]
ON-VEHICLE REPAIR
AUDIO UNIT
Removal and Installation INFOID:0000000004057035
REMOVAL
1. Remove the cluster lid C. Refer to IP-11, "Removal and Installation".
2. Remove the audio control unit screws, using power tool.
3. Pull out the audio control unit from the instrument panel and dis-
connect the audio control unit connectors.
LKIA0582E
INSTALLATION
Installation is in the reverse order of removal.
AV-28
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FRONT TWEETER
[BASE AUDIO]
FRONT TWEETER
Removal and Installation INFOID:0000000004057036
REMOVAL
CAUTION:
Use a suitable tool to prevent damage to the front tweeter speaker grille trim and the instrument panel.
1. Remove the front tweeter grille.
2. Remove the front tweeter screws (A).
3. Pull out the front tweeter speaker (1) and disconnect front
tweeter connector, then remove the front tweeter speaker (1).
ALNIA1074ZZ
INSTALLATION
Installation is in the reverse order of removal.
A
B
C
D
E
F
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FRONT DOOR SPEAKER
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< ON-VEHICLE REPAIR >
[BASE AUDIO]
FRONT DOOR SPEAKER
Removal and Installation INFOID:0000000004057037
REMOVAL
1. Remove the front door finisher. Refer to INT-13, "Removal and Installation".
2. Remove the front door speaker screws (A).
3. Pull out the front door speaker (1), and disconnect the front door
speaker connector and remove the front door speaker (1).
ALNIA0347ZZ
INSTALLATION
Installation is in the reverse order of removal.
AV-30
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2009 Frontier
REAR DOOR SPEAKER
[BASE AUDIO]
REAR DOOR SPEAKER
Removal and Installation INFOID:0000000004057038
REMOVAL
1. Remove the rear door finisher. Refer to INT-13, "Removal and Installation".
2. Remove the rear door speaker screws (A).
3. Remove rear door speaker (1), disconnect rear door speaker
connector (B).
NOTE:
King cab shown, crew cab similar.
ALNIA1071ZZ
INSTALLATION
Installation is in the reverse order of removal.
A
B
C
D
E
F
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AUDIO ANTENNA
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< ON-VEHICLE REPAIR >
[BASE AUDIO]
AUDIO ANTENNA
Location of Audio Antenna System Component INFOID:0000000004057039
AWNIA1798Z
1. Audio antenna 2. Antenna feeder 3. Audio unit M43
Removal and Installation INFOID:0000000004057040
REMOVAL
1. Remove lower glove box. Refer to IP-11, "Removal and Installation".
2. Disconnect audio antenna cable from antenna feeder.
3. Remove antenna rod.
4. Remove rubber seal.
5. Remove cowl top. Refer to EXT-19, "Removal and Installation"
6. Remove fender protector. Refer to EXT-22, "Removal and
Installation of Front Fender Protector".
7. Remove antenna base bolts.
8. Remove antenna base and cable.
.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Always properly tighten the antenna rod during installation or the antenna rod may bend or break during vehicle operation.
AEL610C
AV-32
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DIAGNOSIS AND REPAIR WORKFLOW
[PREMIUM AUDIO (KING CAB)]
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000004057041
OVERALL SEQUENCE
A
B
C
D
E
F
G
H
ALNIA0182GB
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the condition and the environment when the
incident/malfunction occurred).
>> GO TO 2
2.CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition
when the symptom is detected.
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3.DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
>> GO TO 3
AV-33
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DIAGNOSIS AND REPAIR WORKFLOW
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< BASIC INSPECTION >
Is malfunctioning part detected?
YES >> GO TO 4
NO >> GO TO 2
[PREMIUM AUDIO (KING CAB)]
4.REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure.
>> GO TO 5
5.FINAL CHECK
Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Was the repair confirmed?
YES >> Inspection End.
NO >> GO TO 2
AV-34
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AUDIO SYSTEM
[PREMIUM AUDIO (KING CAB)]
FUNCTION DIAGNOSIS
AUDIO SYSTEM
System Diagram INFOID:0000000004057042
A
B
C
D
E
F
G
H
AWNIA1799G
System Description INFOID:0000000004057043
AUDIO SYSTEM
The audio system consists of the following components
• Audio unit
• Audio amp.
• Rod antenna
• Steering wheel audio control switches
• Front door speakers
• Front tweeters
• Rear door speakers
When the audio system is on, radio signals are received by the rod antenna. The audio unit then sends audio
signals to the audio amp. The audio amp. amplifies the audio signals before sending them to the front door
speakers, front tweeters and rear door speakers.
Refer to Owner's Manual for audio system operating instructions.
SATELLITE RADIO SYSTEM
The satellite radio system consists of the following components
• Satellite antenna
• Satellite radio tuner
When the satellite radio system is on, radio signals are supplied to the satellite radio tuner from the satellite
antenna. The satellite radio tuner then sends audio signals to the audio unit.
Refer to Owner's Manual for satellite radio system operating instructions.
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SPEED SENSITIVE VOLUME SYSTEM
AV-35
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AUDIO SYSTEM
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< FUNCTION DIAGNOSIS >
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control
level can be selected by the customer. Refer to Owner's Manual for operating instructions.
[PREMIUM AUDIO (KING CAB)]
Component Parts Location INFOID:0000000004057044
:FRONT
1. Front tweeter LH M110 2. Combination meter M24 3. Audio unit M42, M44, M45, M64
4. Front tweeter RH M112 5. Aux jack M85 6. Satellite radio tuner M41, M129
7. Steering wheel audio control switch-es8. Front door speaker
10. Bluetooth control unit B141, B142
(view with passenger front seat removed)
AWNIA1800Z
9. Rear door speaker
LH D12
RH D112
11. Microphone R8 12. Bluetooth ON indicator R6
LH B76
RH B160
AV-36
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AUDIO SYSTEM
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< FUNCTION DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
Component Description INFOID:0000000004057045
Part name Description
Audio unit Controls audio system and satellite radio system functions
Audio amp.
Steering wheel audio control switches
Front door speakers
Front tweeters
Rear door speakers
Satellite radio tuner
Satellite antenna Audio signal (satellite radio) is received and output to Audio unit.
Receives power (amp ON) and audio signals from Audio unit and outputs audio signals to each speaker.
• Start a voice recognition session
• Answer and end telephone calls
• Adjust the volume level
• Outputs audio signal from audio amp.
• Outputs high, mid and low range sounds
• Outputs audio signal from audio amp.
• Outputs high range sounds
• Outputs audio signal from audio amp.
• Outputs high, mid and low range sounds
• Receives radio signals from satellite antenna
• Sends audio signals to Audio unit
A
B
C
D
E
F
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HANDS-FREE PHONE SYSTEM
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< FUNCTION DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
HANDS-FREE PHONE SYSTEM
System Diagram INFOID:0000000004057046
AWNIA1801G
System Description INFOID:0000000004057047
Refer to the Owner's Manual for Bluetooth telephone system operating instructions.
NOTE:
Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth telephone
system.
Bluetooth telephone system allows users who have a Bluetooth equipped cellular telephone to make a wireless connection between their cellular telephone and the Bluetooth control unit. Hands-free cellular telephone
calls can be sent and received. Some Bluetooth cellular telephones may not be recognized by the Bluetooth
control unit. When a cellular telephone or the Bluetooth control unit is replaced, the telephone must be paired
with the Bluetooth control unit. Different cellular telephones may have different pairing procedures. Refer to
the cellular telephone operating manual.
BLUETOOTH CONTROL UNIT
When the ignition switch is turned to ACC or ON, the Bluetooth control unit will power up. During power up, the
Bluetooth control unit is initialized and performs various self checks. Initialization may take up to 10 seconds.
During this time, the Bluetooth ON indicator will flash until initialization is complete. If a phone is present in the
vehicle and paired with the Bluetooth control unit, Nissan Voice Recognition will then become active. Bluetooth telephone functions can be turned off using the Nissan Voice Recognition system.
STEERING WHEEL AUDIO CONTROL SWITCHES
When buttons on the steering wheel audio control switch are pushed, the resistance in steering wheel audio
control switch circuit changes depending on which button is pushed. The Bluetooth control unit uses this signal to perform various functions while navigating through the voice recognition system.
The following functions can be performed using the steering wheel audio control switch:
• Initiate Self Diagnosis of the Bluetooth telephone system
• Start a voice recognition session
• Answer and end telephone calls
• Adjust the volume of calls
MICROPHONE
The microphone is located in the roof console assembly. The microphone sends a signal to the Bluetooth control unit. The microphone can be actively tested during self-diagnosis.
AUDIO UNIT
The audio unit receives signals from the Bluetooth control unit and sends audio signals to the speakers.
BLUETOOTH ON INDICATOR
The Bluetooth ON indicator is located in the overhead console. The indicator will flash during power up whilethe Bluetooth control unit is initializing. This process may take up to 10 seconds. If a phone is present in
thevehicle and paired with the Bluetooth control unit, the indicator will remain on to indicate that the system
isready for voice commands. The indicator flashes during self-diagnosis.
AV-38
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< FUNCTION DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
Component Parts Location INFOID:0000000004449385
A
B
C
D
E
F
G
AWNIA1800Z
:FRONT
1. Front tweeter LH M110 2. Combination meter M24 3. Audio unit M42, M44, M45, M64
4. Front tweeter RH M112 5. Aux jack M85 6. Satellite radio tuner M41, M129
7. Steering wheel audio control switch-es8. Front door speaker
LH D12
RH D112
10. Bluetooth control unit B141, B142
(view with passenger front seat removed)
11. Microphone R8 12. Bluetooth ON indicator R6
9. Rear door speaker
LH B76
RH B160
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HANDS-FREE PHONE SYSTEM
[PREMIUM AUDIO (KING CAB)]
Component Description
Part name Description
Audio unit
Front door speaker
Front tweeter
Steering wheel audio control switches
Microphone Sends voice signals to Bluetooth control unit
Bluetooth control unit Controls hands-free phone functions
Bluetooth antenna Sends telephone voice signal to Bluetooth control unit
Bluetooth ON indicator Controlled by the Bluetooth control unit
• Receives telephone voice signal from Bluetooth control unit
• Sends telephone voice and voice guidance signals to the speakers
Receives telephone voice and voice guidance signals fro m the audio amp.
• Start a voice recognition session
• Answer and end telephone calls
• Adjust the volume level
INFOID:0000000004057049
AV-40
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DIAGNOSIS SYSTEM (AUDIO UNIT)
[PREMIUM AUDIO (KING CAB)]
DIAGNOSIS SYSTEM (AUDIO UNIT)
Component Function Check INFOID:0000000004057050
STARTING THE SELF-DIAGNOSIS MODE
1. Turn ignition switch from OFF to ACC.
2. Press and hold the “DISP/CLOCK” switch and turn the volume control dial clockwise or counterclockwise
for 30 clicks or more.
WKIA5819E
Then the self-diagnosis operates. A single beep indicates self-diagnosis mode is active.
3. Initially, all display segments will be illuminated.
4. Press each switch. When each switch is pressed, its name and communication code will be displayed
NOTE:
CD player LOAD and EJECT buttons are not included in this test and will not change the display when
pressed.
A
B
C
D
E
F
G
H
I
DIAGNOSIS FUNCTION
• It can check for continuity of the switches by sounding the beep when each audio unit switch and steering
switch is pressed.
• It can check for continuity of harness between audio unit switch and steering switch.
EXITING THE SELF-DIAGNOSIS MODE
Turn ignition switch OFF. Then the self-diagnosis ends.
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DIAGNOSIS SYSTEM (BLUETOOTH CONTROL UNIT)
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< FUNCTION DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
DIAGNOSIS SYSTEM (BLUETOOTH CONTROL UNIT)
Diagnosis Description INFOID:0000000004057051
The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically
every ignition cycle during control unit initialization. The second diagnostic check is performed by the technician using the steering wheel audio control switches prior to trouble diagnosis.
BLUETOOTH CONTROL UNIT INITIALIZATION CHECKS
• Internal control unit failure
• Bluetooth antenna connection open or shorted
• Steering wheel audio control switches [SEND( )/END( )] stuck closed
• Vehicle speed pulse count
• Microphone connection test (with playback to operator)
• Bluetooth inquiry check
OPERATION PROCEDURE
1. Turn ignition switch to ACC or ON.
2. Wait for the Bluetooth system to complete initialization. This may take up to 10 seconds.
3. Press and hold the steering wheel audio control switch
button for at least 5 seconds. The Bluetooth system will begin to
play a verbal prompt.
ALNIA0448GB
4. While the prompt is playing, press and hold the steering wheel
audio control switch button until you hear the “Diagnostics
mode” prompt. The Bluetooth system will sound a 5 second
beep.
5. While the beep is sounding, press and hold the steering wheel
audio control switch button again until you hear prompts.
6. The Bluetooth system has now entered into the diagnostic
mode. Results of the diagnostic checks will be verbalized to the
technician and the Bluetooth ON indicator will flash. Refer to AV-
42, "Work Flow".
7. After the failure records are reported, an interactive microphone
ALNIA0449GB
test will be performed. Follow the voice prompt. If the microphone test fails refer to AV-42, "Work Flow"
.
8. Self-diagnosis mode is complete when the voice prompt says “All diagnostic functions completed”.
Work Flow INFOID:0000000004057052
Failure Message Action
“Internal failure” Replace Bluetooth control unit. Refer to AV-90, "Removal and Installation"
“Bluetooth antenna open”
“Bluetooth antenna shorted”
“Phone/Send for Hands Free System is stuck”
“Phone/End for the Hands Free System is stuck”
“Microphone test” (failed interactive test)
1. Inspect harness connection.
2. Replace Bluetooth antenna. Refer to AV-90, "Removal and Installation"
Check steering wheel audio control switches. Refer to AV-53, "Description"
1. Inspect harness between Bluetooth control unit and microphone.
2. Replace microphone. Refer to AV-92, "Removal and Installation"
.
.
.
.
AV-42
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POWER SUPPLY AND GROUND CIRCUIT
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< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure INFOID:0000000004057053
1.CHECK FUSES
Check that the following fuses of the audio unit are not are not blown.
Unit Terminals Signal name Fuse No.
Audio unit
Are the fuses OK?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect audio unit connector M64.
2. Check voltage between the audio unit connector M64 and
ground.
(+)
Connector Terminal
6Ground0V
M64
10 Ground
Are the voltage results as specified?
YES >> GO TO 3
NO >> • Check connector housing for disconnected or loose terminals.
• Repair harness or connector.
(-) OFF ACC ON
3.GROUND CIRCUIT CHECK
6 Battery power 29
10 Ignition switch ACC or ON 4
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
ALNIA0695GB
A
B
C
D
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Inspect audio unit case ground.
Does case ground pass inspection?
YES >> Inspection End.
NO >> Repair audio unit case ground.
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Diagnosis Procedure INFOID:0000000004057054
1.CHECK FUSES
Check that the following fuses of the satellite radio tuner (factory installed) are not blown.
Satellite radio tuner (factory installed)
Are the fuses OK?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
Unit Terminals Signal name Fuse No.
32 Battery power 17
36 Ignition switch ACC or ON 4
AV-43
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< COMPONENT DIAGNOSIS >
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41.
3. Check voltage between the satellite radio tuner (factory installed) and ground.
[PREMIUM AUDIO (KING CAB)]
(+)
Connector Terminal
32
M41
36 0V
(-) OFF ACC ON
Ground
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
Are the voltage readings as specified?
YES >> GO TO 3
NO >> • Check connector housings for disconnected or loose
WKIA4539E
terminals.
• Repair harness or connector.
3.GROUND CIRCUIT CHECK
Inspect satellite radio tuner (factory installed) case ground.
Does case ground pass inspection?
YES >> Inspection End.
NO >> Repair satellite radio tuner (factory installed) case ground.
BLUETOOTH CONTROL UNIT
BLUETOOTH CONTROL UNIT : Diagnosis Procedure INFOID:0000000004057055
1.CHECK FUSE
Check that the following fuses for the Bluetooth control unit are not blown.
Unit Terminal Signal name Fuse No.
1 Battery power 29
Bluetooth control unit
2 Ignition switch ACC or ON 4
3 Ignition switch ON or START 12
Is inspection result OK?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between Bluetooth control unit harness connector
B141 and ground.
(+)
Connector Terminal
1
B141
20V
30V
(-) OFF ON ACC
Battery
voltage
Ground
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
Battery
voltage
0V
Is battery voltage present as specified?
YES >> GO TO 3.
NO >> Check harness between Bluetooth control unit and fuse.
3.CHECK GROUND CIRCUIT
ALNIA0323GB
AV-44
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POWER SUPPLY AND GROUND CIRCUIT
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< COMPONENT DIAGNOSIS >
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector.
3. Check continuity between Bluetooth control unit harness connector B141 and ground.
[PREMIUM AUDIO (KING CAB)]
A
Connector Terminal — Continuity
4
B141
20
21
22
Ground Yes
AWNIA1802Z
Are continuity results as specified?
YES >> Inspection End.
NO >> Repair harness or connector.
MICROPHONE
MICROPHONE : Diagnosis Procedure INFOID:0000000004057056
1.CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)
1. Turn ignition switch ON.
2. Check voltage between microphone harness connector R8 terminal 4 and ground.
(+)
Connector Terminal
R8 4 Ground 5V
(-)
Value (Approx.)
Is approximately 5V present?
YES >> GO TO 3
NO >> GO TO 2
WKIA5796E
2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
B
C
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1. Turn ignition switch OFF.
2. Disconnect microphone and Bluetooth control unit harness connectors.
3. Check continuity between microphone harness connector R8
(A) terminal 4 and Bluetooth control unit harness connector
B141 (B) terminal 29.
AB
Connector Terminal Connector Terminal
R8 4 B141 29 Yes
Continuity
4. Check continuity between microphone harness connector R8
(A) terminal 4 and ground.
A
Connector Terminal
R8 4 Ground No
—Continuity
Are the continuity test results as specified?
YES >> Replace the Bluetooth control unit. Refer to AV-90, "Removal and Installation".
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
ALNIA0320GB
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< COMPONENT DIAGNOSIS >
1. Turn ignition switch OFF.
2. Disconnect microphone harness connector R8 and Bluetooth
control unit harness connector B141.
3. Check continuity between microphone harness connector R8
(A) terminal 2 and Bluetooth control unit harness connector
B141 (B) terminal 8.
[PREMIUM AUDIO (KING CAB)]
AB
Connector Terminal Connector Terminal
R8 2B1418 Yes
Continuity
Does continuity exist?
YES >> Inspection End.
NO >> Repair harness or connector.
ALNIA0322GB
AV-46
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FRONT DOOR SPEAKER
[PREMIUM AUDIO (KING CAB)]
FRONT DOOR SPEAKER
Description INFOID:0000000004057057
The audio unit sends audio signals to the front door speakers using the audio signal circuits.
Diagnosis Procedure INFOID:0000000004057058
1.SPEAKER HARNESS CHECK
1. Disconnect audio unit connector M64 and suspect speaker connector.
2. Check continuity between audio unit harness connector M64 (A)
and suspect speaker harness connector (B).
AB
Connector Terminal Connector Terminal
M64
1
21
3
41
D12
D112
2
2
Continuity
Yes
3. Check continuity between audio unit harness connector M64 (A)
and ground.
A
Connector Terminal
1
M64
2
3
4
—Continuity
Ground No
AWNIA0849Z
Are continuity test results as specified?
YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.SPEAKER SIGNAL CHECK
A
B
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< COMPONENT DIAGNOSIS >
1. Connect audio unit connector and audio amp. connector.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M64
terminals with CONSULT-III or oscilloscope.
[PREMIUM AUDIO (KING CAB)]
Connector
M64
Terminals
(+) (-)
21
43
Condition
Receive
audio signal
Reference
signal
SKIA0177E
Are the audio signal voltage readings as specified?
YES >> Replace suspect speaker. Refer to AV-86, "Removal
and Installation".
NO >> Replace audio unit. Refer to AV-84, "Removal and
Installation".
AWNIA1803Z
AV-48
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FRONT TWEETER
[PREMIUM AUDIO (KING CAB)]
FRONT TWEETER
Description INFOID:0000000004057059
The audio unit sends audio signals to the tweeters using the audio signal circuits.
Diagnosis Procedure INFOID:0000000004057060
1.SPEAKER HARNESS CHECK
1. Disconnect audio unit connector M64 and suspect speaker connector.
2. Check continuity between audio unit harness connector M64 (A)
and suspect speaker harness connector (B).
AB
Connector Terminal Connector Terminal
M64
1
21
3
41
M110
M112
2
2
Continuity
Yes
3. Check continuity between audio unit harness connector M64 (A)
and ground.
A
Connector Terminal
1
M64
2
3
4
—Continuity
Ground No
AWNIA0849Z
Are continuity test results as specified?
YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.SPEAKER SIGNAL CHECK
A
B
C
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< COMPONENT DIAGNOSIS >
1. Connect audio unit connector and audio amp. connector.
2. Turn ignition switch ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M64
terminals with CONSULT-III or oscilloscope.
[PREMIUM AUDIO (KING CAB)]
Connector
M64
Terminals
(+) (-)
21
43
Condition
Receive
audio signal
Reference
signal
SKIA0177E
Are the audio signal voltage readings as specified?
YES >> Replace suspect speaker. Refer to AV-85, "Removal
and Installation".
NO >> Replace audio unit. Refer to AV-84, "Removal and
Installation".
AWNIA1803Z
AV-50
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REAR DOOR SPEAKER
[PREMIUM AUDIO (KING CAB)]
REAR DOOR SPEAKER
Description INFOID:0000000004057061
The audio unit sends audio signals to the rear door speakers using the audio signal circuits.
Diagnosis Procedure INFOID:0000000004057062
1.SPEAKER HARNESS CHECK
1. Disconnect audio unit connector M44 and the suspect speaker
connector.
2. Check continuity between audio unit harness connector M44 (A)
and suspect speaker harness connector (B).
AB
Connector Terminal Connector Terminal
M44
13
14 1
15
16 1
B76
B160
2
2
Continuity
Yes
3. Check continuity between audio unit harness connector M44 (A)
and ground.
A
Connector Terminal
13
M44
14
15
16
—Continuity
Ground No
AWNIA0851Z
Are the continuity test results as specified?
YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.SPEAKER SIGNAL CHECK
A
B
C
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< COMPONENT DIAGNOSIS >
1. Connect audio unit connector M44 and audio amp. connector
B159.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between audio unit harness connector M44
terminals with CONSULT-III or oscilloscope.
[PREMIUM AUDIO (KING CAB)]
Connector
M44
Terminals
(+) (-)
14 13
16 15
Condition
Receive
audio signal
Reference
signal
SKIA0177E
Is the audio signal voltage reading as specified?
YES >> Replace suspect speaker. Refer to AV-87, "Removal
and Installation".
NO >> Replace audio unit. Refer to AV-84, "Removal and
Installation".
AWNIA1804Z
AV-52
Page 68
< COMPONENT DIAGNOSIS >
Revision: October 2008
2009 Frontier
STEERING SWITCH
[PREMIUM AUDIO (KING CAB)]
STEERING SWITCH
Description INFOID:0000000004057063
When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio
control switch circuit changes depending on which button is pushed.
Diagnosis Procedure INFOID:0000000004057064
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect steering wheel audio control switch connector M102.
3. Check resistance between steering switch connector terminals.
Resistance
Terminal Signal name Condition
16 17
20 17
Seek (down)
Volume (down) Depress VOL down switch. 487
Mode/end
Seek (up)
Volume (up) Depress VOL up switch. 487
Phone/send
Depress switch.
Depress switch.
Depress switch.
Depress switch.
(Ω)
(Approx.)
165
0
WKIA4457E
165
0
Do the steering wheel audio control switches check OK?
YES >> GO TO 2
NO >> Replace steering wheel audio control switch. Refer to AV-88, "Removal and Installation"
.
2.CHECK HARNESS
A
B
C
D
E
F
G
H
I
J
1. Disconnect Bluetooth control unit harness connector B141 and
spiral cable harness connector M30.
2. Check continuity between Bluetooth control unit harness connector B141 (A) and spiral cable harness connector M30 (B).
AB
Connector Terminal Connector Terminal
B141
12
M30
14 31
24
Continuity
Yes13 32
3. Check continuity between Bluetooth control unit connector B141 (A) and ground.
A
Connector Terminal
12
B141
14
—Continuity
Ground No13
Are the continuity results as specified?
YES >> GO TO 3
NO >> Repair harness.
3.SPIRAL CABLE CHECK
K
L
M
ALNIA0735GB
AV
O
P
AV-53
Page 69
STEERING SWITCH
Z
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
1. Disconnect spiral cable connector M102.
2. Check continuity between spiral cable harness connector M30
(A) and M102 (B).
[PREMIUM AUDIO (KING CAB)]
AB
Connector Terminal Connector Terminal
M30
24
M102
32 16
20
Continuity
Yes31 17
Does the spiral cable check OK?
YES >> Inspection End.
NO >> Replace spiral cable. Refer to SR-6, "Removal and Installation"
AWLIA1602Z
.
AV-54
Page 70
COMMUNICATION SIGNAL CIRCUIT
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
COMMUNICATION SIGNAL CIRCUIT
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description INFOID:0000000004057065
Communication signals are exchanged between the audio unit and satellite radio tuner using the communication circuits.
SATELLITE RADIO TUNER : Diagnosis Procedure INFOID:0000000004057066
1.CHECK HARNESS - REQ1
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41
and audio unit connector M42.
3. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and audio unit harness
connector M42 (B) terminal 48.
AB
Connector Terminal Connector Terminal
M4128M4248Yes
4. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 28 and ground.
Continuity
ALNIA0709GB
A
B
C
D
E
F
G
H
A
Connector Terminal
M41 28 Ground No
—Continuity
Are continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK HARNESS - TXD
1. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and audio unit harness
connector M42 (B) terminal 49.
AB
Connector Terminal Connector Terminal
M4129M4249Yes
Continuity
2. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 29 and ground.
A
Connector Terminal
M41 29 Ground No
—Continuity
Are continuity results as specified?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK HARNESS - RXD
I
J
K
L
M
AV
ALNIA0707GB
O
P
AV-55
Page 71
COMMUNICATION SIGNAL CIRCUIT
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
1. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and audio unit harness
connector M42 (B) terminal 50.
[PREMIUM AUDIO (KING CAB)]
AB
Connector Terminal Connector Terminal
M41 30 M42 50 Yes
Continuity
2. Check continuity between satellite radio tuner (factory installed)
harness connector M41 (A) terminal 30 and ground.
A
Connector Terminal
M41 30 Ground No
— Continuity
Are continuity results as specified?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK REQ1 SIGNAL
1. Connect satellite radio tuner (factory installed) connector and audio unit connector.
2. Turn ignition switch to ACC
3. Check signal between satellite radio tuner (factory installed) harness connector M41 terminal 28 and ground with CONSULT-III
or oscilloscope.
(+)
Connector Terminal
(-) Reference signal
ALNIA0708GB
M41 28 Ground
SKIB3825E
Are voltage readings as specified?
YES >> GO TO 5
NO >> Replace audio unit. Refer to AV-84, "Removal and Installation"
5.CHECK TXD SIGNAL
Check signal between satellite radio tuner (factory installed) harness
connector M41 terminal 29 and ground with CONSULT-III or oscilloscope.
(+)
Connector Terminal
M41 29 Ground
Are the voltage readings as specified?
(-) Reference signal
SKIB3824E
WKIA4544E
.
WKIA4545E
AV-56
Page 72
COMMUNICATION SIGNAL CIRCUIT
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
YES >> GO TO 6
NO >> Replace satellite radio tuner.
6.CHECK RXD SIGNAL
[PREMIUM AUDIO (KING CAB)]
A
Check signal between satellite radio tuner (factory installed) harness
connector M41 terminal 30 and ground with CONSULT-III or oscilloscope.
(+)
Connector Terminal
M41 30 Ground
(-) Reference signal
SKIB3826E
Are the voltage readings as specified?
YES >> Replace satellite radio tuner. Refer to AV-96, "Removal and Installation".
NO >> Replace audio unit. Refer to AV-84, "Removal and Installation"
.
WKIA4546E
B
C
D
E
F
G
H
I
M
AV
O
J
K
L
P
AV-57
Page 73
SOUND SIGNAL CIRCUIT
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
SOUND SIGNAL CIRCUIT
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description INFOID:0000000004057067
Left and right channel audio signals are supplied from the satellite radio tuner to the audio unit through the
sound signal circuits.
SATELLITE RADIO TUNER : Diagnosis Procedure INFOID:0000000004057068
LEFT CHANNEL
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41
and audio unit connector M42.
3. Check continuity between satellite radio tuner (factory installed)
connector M41 (A) and audio unit connector M42 (B).
AB
Connector Terminal Connector Terminal
M41
21
22 42
M42
41
Continuity
Yes
4. Check continuity between satellite radio tuner (factory installed) connector M41 (A) and ground.
A
Connector Terminal
M41
21
22
—Continuity
Ground No
Are continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK LEFT CHANNEL AUDIO SIGNAL
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed)
connector M41 terminals 21 and 22 with CONSULT-III or oscilloscope.
(+) (-)
Connector Terminal Terminal
Reference signal
ALNIA0710GB
M41 22 21
Are voltage readings as specified?
YES >> Replace audio unit. Refer to AV-84, "Removal and Installation".
NO >> Replace satellite radio tuner. Refer to AV-96, "Removal and Installation"
RIGHT CHANNEL
ALNIA0880GB
SKIB3609E
.
AV-58
Page 74
< COMPONENT DIAGNOSIS >
Revision: October 2008
2009 Frontier
SOUND SIGNAL CIRCUIT
[PREMIUM AUDIO (KING CAB)]
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector M41
and audio unit connector M42.
3. Check continuity between satellite radio tuner (factory installed)
M41 (A) and audio unit M42 (B).
AB
Connector Terminal Connector Terminal
M41
23
24 44
M42
43
Continuity
Yes
4. Check continuity between satellite radio tuner (factory installed) connector M41 (A) and ground.
A
Connector Terminal
M41
23
24
—Continuity
Ground No
Are continuity results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK RIGHT CHANNEL AUDIO SIGNAL
A
B
C
D
ALNIA0711GB
E
F
G
H
1. Connect satellite radio tuner (factory installed) and audio unit.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner (factory installed)
connector M41 terminals 23 and 24 with CONSULT-III or oscilloscope.
(+) (-)
Connector Terminal Terminal
M41 24 23
Reference signal
SKIB3609E
Are voltage readings as specified?
YES >> Replace audio unit. Refer to AV-84, "Removal and Installation".
NO >> Replace satellite radio tuner. Refer to AV-96, "Removal and Installation"
I
J
K
ALNIA0881GB
L
M
AV
.
O
P
AV-59
Page 75
MICROPHONE SIGNAL CIRCUIT
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
MICROPHONE SIGNAL CIRCUIT
Description INFOID:0000000004057069
Voice signals are transmitted from the microphone to the Bluetooth control unit using the microphone signal
circuits.
Diagnosis Procedure INFOID:0000000004057070
1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE
1. Turn ignition switch OFF.
2. Disconnect Bluetooth control unit connector and microphone
connector.
3. Check continuity between Bluetooth control unit harness connector B141 (A) and microphone harness connector R8 (B).
AB
Connector Terminal Connector Terminal
B141
7
R8
29 4
1
Continuity
Yes82
4. Check continuity between Bluetooth control unit harness connector B141 (A) and ground.
A
Connector Terminal
7
B141
29
—Continuity
Ground No8
Are the continuity test results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK MICROPHONE POWER SUPPLY
1. Connect Bluetooth control unit connector and microphone connector.
2. Turn ignition switch ON.
3. Check voltage between microphone harness connector R8 terminal 4 and ground.
WKIA5795E
4 - Ground : Approx. 5V
Is voltage reading approx. 5 volts?
YES >> GO TO 3
NO >> Replace Bluetooth control unit. Refer to AV-90,
3.CHECK MICROPHONE SIGNAL
"Removal and Installation".
WKIA5796E
AV-60
Page 76
MICROPHONE SIGNAL CIRCUIT
Revision: October 2008
2009 Frontier
< COMPONENT DIAGNOSIS >
Check signal between Bluetooth control unit harness connector
B141 terminals 7 and 8 with CONSULT-III or and oscilliscope.
[PREMIUM AUDIO (KING CAB)]
A
Connector
B141 7 8
(+) (-)
Terminal Terminal
Reference signal
While speaking into MIC
PKIB5037J
Are voltage readings as specified?
YES >> Replace Bluetooth control unit. Refer to AV-90, "Removal and Installation".
NO >> Replace microphone. Refer to AV-92, "Removal and Installation"
.
B
C
ALNIA0934GB
D
E
F
G
H
M
AV
O
I
J
K
L
P
AV-61
Page 77
AUDIO UNIT
Z
Revision: October 2008
2009 Frontier
< ECU DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
ECU DIAGNOSIS
AUDIO UNIT
Reference Value INFOID:0000000004057071
TERMINAL LAYOUT
AWNIA0795Z
PHYSICAL VALUES
Terminal
(Wire color)
+–
2
(BR)
4
(LG)
6
(Y)
7
(GR)
8
(R)
9–Shield –– – 0V
10
(G/B)
1
(L)
3
(R)
Ground Battery power Input – – Battery voltage
Ground
Ground Illumination signal Input OFF
Ground ACC signal Input
Item
Audio sound signal
front LH
Audio sound signal
front RH
Illumination control
signal
Signal
input/
output
Output
Output
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
Receive audio signal
Receive audio signal
Illumination control
switch is operated
by lighting switch in
1st position.
Lighting switch is in
1st position.
Lighting switch is
OFF.
– Battery voltage
Reference value
(Approx.)
Changes between 0 and 12V
Battery voltage
0V
SKIA0177E
SKIA0177E
AV-62
Page 78
< ECU DIAGNOSIS >
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
Terminal
(Wire color)
+–
14
(G)
16
(GR)
42
(R)
13
(B)
15
(O)
41
(G)
Item
Audio sound signal
rear LH
Audio sound signal
rear RH
Satellite radio audio signal LH
Signal
input/
output
Output
Output
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
Receive audio signal
Receive audio signal
Satellite radio tuner
operating
Reference value
(Approx.)
SKIA0177E
SKIA0177E
A
B
C
D
E
F
G
H
44
(B)
45 – Ground – – – 0V
46 – Data ground – – – 0V
48
(O)
49
(P)
50
(L)
62
(W)
43
(W)
–
–
–
61
(B)
Satellite radio audio signal RH
REQ (SAT→AV
control unit)
RX (SAT→AV control unit)
TX (AV control
unit→SAT)
Telephone signal
input
Input
Input
Input
Input
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ACC/ON
Satellite radio tuner
operating
–—
–—
–—
Bluetooth control
unit sends audio
signal
SKIB3609E
SKIB3609E
I
J
K
L
M
AV
O
P
63
(R)
64 – Shield – – – 0V
SKIB3609E
– Mute control – – – –
AV-63
Page 79
< ECU DIAGNOSIS >
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
Terminal
(Wire color)
+–
67 – Shield –
69
(V)
70
(LG)
73
(SB)
71
(O)
71
(O)
Ground
Item
Steering switch signal A
Steering switch signal B
Vehicle speed signal (8-pulse)
Signal
input/
output
Input
Input
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
–0V
Pressing
switch
Pressing switch
Pressing VOL up
switch
Except for above 5V
Pressing switch
Pressing switch
Pressing VOL down
switch
Except for above 5 V
When vehicle speed
is approx. 40 km/h
(25 MPH)
Reference value
(Approx.)
0.75
0.75V
0V
2V
0V
2V
74
(W)
75
(B)
76
(R)
Ground
Ground
– Shield – – – 0V
Auxiliary audio input RH (+)
Auxiliary audio input LH (+)
Input
Input
Ignition
switch
ON
Ignition
switch
ON
Receive audio signal (AUX input)
Receive audio signal (AUX input)
PKIA1935E
SKIA0177E
SKIA0177E
AV-64
Page 80
AUDIO UNIT
B
Revision: October 2008
2009 Frontier
< ECU DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
Wiring Diagram INFOID:0000000004057072
A
B
C
D
E
F
G
H
M
AV
O
I
J
K
L
AV-65
ABNWA0166G
P
Page 81
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
ABNWA0167G
AV-66
Page 82
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
A
B
C
D
E
F
G
H
M
AV
O
I
J
K
L
ABNIA0515G
P
AV-67
Page 83
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
ABNIA0516G
AV-68
Page 84
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
A
B
C
D
E
F
G
H
M
AV
O
I
J
K
L
ABNIA0517G
P
AV-69
Page 85
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
ABNIA0518G
AV-70
Page 86
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
A
B
C
D
E
F
G
H
M
AV
O
I
J
K
L
ABNIA0519G
P
AV-71
Page 87
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
ABNIA0520G
AV-72
Page 88
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
A
B
C
D
E
F
G
H
M
AV
O
I
J
K
L
ABNIA0521G
P
AV-73
Page 89
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
ABNIA0522G
AV-74
Page 90
< ECU DIAGNOSIS >
B
Revision: October 2008
2009 Frontier
AUDIO UNIT
[PREMIUM AUDIO (KING CAB)]
A
B
C
D
E
F
G
H
M
AV
O
I
J
K
L
ABNIA0523G
P
AV-75
Page 91
SATELLITE RADIO TUNER
Z
Revision: October 2008
2009 Frontier
< ECU DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
SATELLITE RADIO TUNER
Reference Value INFOID:0000000004057073
AWNIA1778Z
PHYSICAL VALUES
Terminal Description
+ – Signal name
22
(R)
24
(B)
25 — Shield — — — —
26 — Shield — — — —
21
(G)
23
(W)
Satellite radio sound signal
LH
Satellite radio sound signal
RH
Input/
Output
Output
Output
Ignition
switch
ON
Ignition
switch
ON
Condition
When satellite radio mode
is selected
When satellite radio mode
is selected
Reference value
(Approx.)
SKIB3609E
SKIB3609E
28
(O)
29
(P)
Ground
Ground
Request signal
(SAT→CONT)
Communication signal
(SAT→CONT)
Output
Output
Ignition
switch
ON
Ignition
switch
ON
AV-76
When satellite radio mode
is selected
SKIA9299J
When satellite radio mode
is selected
SKIA9300J
Page 92
< ECU DIAGNOSIS >
Revision: October 2008
2009 Frontier
SATELLITE RADIO TUNER
[PREMIUM AUDIO (KING CAB)]
Terminal Description
+ – Signal name
30
Ground
(L)
32
(R/B)
(G/B)
Ground Battery power supply Input
36
Ground ACC power supply Input
37 — Satellite antenna Input — — —
Communication signal
(CONT→SAT)
Input/
Output
Input
Ignition
switch
ON
Ignition
switch
OFF
Ignition
switch
ACC
Condition
When satellite radio mode
is selected
— Battery voltage
— Battery voltage
Reference value
(Approx.)
A
B
C
SKIA9301J
D
E
F
G
H
M
AV
O
I
J
K
L
P
AV-77
Page 93
BLUETOOTH CONTROL UNIT
Z
Revision: October 2008
2009 Frontier
< ECU DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
BLUETOOTH CONTROL UNIT
Reference Value INFOID:0000000004057074
TERMINAL LAYOUT
AWNIA1805Z
PHYSICAL VALUES
Terminal
(wire color)
+ – Signal name
1
(R/B)
2
(G/Y)
3
(W/G)
4
(B)
5–Shield – – – –
6–Shield – – – –
7
(G)
9
(W)
Ground Battery power Input – – Battery voltage
Ground ACC power Input
Ground IGN power Input
Ground Ground – – – 0V
8
MIC in signal Input – – –
(L)
10
Audio out Output
(B)
Description
Input/
output
Ignition
switch
ACC/ON
Ignition
switch
ON/
START
Ignition
switch
ACC/ON
Condition
–Battery voltage
–Battery voltage
Bluetooth control
unit sends audio
signal
Reference value
(Approx.)
11
(R)
12
(BR)
– Mute control – – – –
Pressing
switch
14
(G)
Steering switch signal A
Input
Ignition
switch
ON
Pressing switch
Pressing VOL up
switch
Except for above 5V
AV-78
SKIB3609E
0V
0.75
2V
Page 94
< ECU DIAGNOSIS >
Revision: October 2008
2009 Frontier
BLUETOOTH CONTROL UNIT
[PREMIUM AUDIO (KING CAB)]
Terminal
(wire color)
+ – Signal name
13
(L)
15
(GR)
17
(V)
18
(LG)
20
(B)
21
(B)
22
(B)
14
Steering switch sig-
(G)
Ground LED power Output
(O)
(O)
Ground Ground – – – 0V
Ground Ground – – – 0V
Ground Ground – – – 0V
nal B
19
Steering switch signal A
19
Steering switch signal B
Description
Input/
output
Input
Output
Output
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
Pressing switch
Pressing switch
Pressing VOL
down switch
Except for above 5 V
– Battery voltage
Pressing
switch
Pressing switch
Pressing VOL up
switch
Except for above 5V
Pressing switch
Pressing switch
Pressing VOL
down switch
Except for above 5V
Reference value
(Approx.)
0.75V
0.75
0.75V
0V
2V
0V
2V
0V
2V
A
B
C
D
E
F
G
H
I
J
K
28
(SB)
29
(Y)
33
(B)
34 – Shield – – – –
Ground
Ground Microphone power Output
Vehicle speed signal (8-pulse)
– Bluetooth antenna – – – –
Input
Ignition
switch
ON
Ignition
switch
ON
When vehicle
speed is approx. 40
km/h (25 MPH)
–5V
AV-79
PKIA1935E
L
M
AV
O
P
Page 95
AUDIO SYSTEM
Revision: October 2008
2009 Frontier
< SYMPTOM DIAGNOSIS >
[PREMIUM AUDIO (KING CAB)]
SYMPTOM DIAGNOSIS
AUDIO SYSTEM
Symptom Table INFOID:0000000004057075
AUDIO SYSTEM
Symptom Possible cause Reference page
Inoperative
Steering wheel audio control switch does not operate
All speakers do not sound
One or several speakers do not sound
CD
• Audio unit power circuit
• Audio unit
• Steering wheel audio control switch
• Audio unit
• Audio unit
• Audio unit power circuit
• Front door speaker
• Front tweeter
• Rear door speaker
• AV-43
• AV-41
• AV-53
• AV-41
• AV-41
• AV-43
• AV-47
• AV-49
• AV-51
Symptom Possible cause Reference page
CD cannot be inserted.
CD cannot be ejected.
The CD cannot be played.
The sound skips, stops suddenly, or is distorted.
SATELLITE RADIO
Symptom Possible cause Reference page
Inoperative
Right or left channel does not sound
HANDS-FREE PHONE
Symptom Possible cause Reference page
Inoperative
Steering wheel audio switch does not operate
Voice activated control does not activate
Audio unit AV-41
• Satellite radio tuner power or ground circuit
• Satellite radio tuner communication circuit
• Satellite radio tuner
• Satellite radio tuner right c hannel au dio sig nal circ uit
• Satellite radio tuner left channel audio signal circuit
• Satellite radio tuner
• Bluetooth control unit power circuit
• Bluetooth control unit
• Steering wheel audio control switch
• Bluetooth control unit
• Microphone
• Steering wheel audio control switch
• Bluetooth control unit
• AV-43
• AV-55
• AV-58
• AV-58
• AV-44
• AV-42
• AV-53
• AV-42
• AV-60
• AV-53
• AV-42
AV-80
Page 96
< SYMPTOM DIAGNOSIS >
Revision: October 2008
2009 Frontier
NORMAL OPERATING CONDITION
[PREMIUM AUDIO (KING CAB)]
NORMAL OPERATING CONDITION
Description INFOID:0000000004057076
The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference,
etc.).
NOISE
The following noise results from variations in field strength, such as fading noise and multi-path noise, or
external noise from trains and other sources. It is not a malfunction.
• Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings blocking the signal.
• 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 mountains or buildings.
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and operation 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
Occurs only when engine is ON.
The occurrence of the noise is linked with the operation of the fuel pump. • Fuel pump condenser
Noise only occurs when various
electrical components are operating.
The noise occurs constantly, not just under certain conditions. • Poor ground of antenna feeder line
A cracking or snapping sound occurs while the vehicle is being driven, especially when
it is vibrating excessively.
A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.
A cracking or snapping sound occurs with the operation of various switches.
The noise occurs when various motors are operating.
• Ignition components
• Relay malfunction, audio unit malfunction
• Motor case ground
•Motor
• Ground wire of body parts
• Ground due to improper part installation
• Wiring connections or a short circuit
A
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AV-81
Page 97
PRECAUTIONS
Revision: October 2008
2009 Frontier
< PRECAUTION >
[PREMIUM AUDIO (KING CAB)]
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004057077
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs 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 SR and SB sections of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death 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, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
AV-82
Page 98
< PREPARATION >
Revision: October 2008
2009 Frontier
PREPARATION
[PREMIUM AUDIO (KING CAB)]
PREPARATION
PREPARATION
Commercial Service Tools INFOID:0000000004057078
Tool name Description
Loosening bolts and nuts
Power tool
PBIC0191E
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AV-83
Page 99
AUDIO UNIT
Revision: October 2008
2009 Frontier
< ON-VEHICLE REPAIR >
[PREMIUM AUDIO (KING CAB)]
ON-VEHICLE REPAIR
AUDIO UNIT
Removal and Installation INFOID:0000000004459446
REMOVAL
1. Remove the cluster lid C. Refer to IP-11, "Removal and Installation".
2. Remove the center ventilator ducts. Refer to VTL-21, "Removal and Installation"
3. Remove the audio unit control screws (A), then remove the
audio unit assembly, from cluster lid C.
.
4. Remove the audio unit (3) from the audio controls (1).
5. Remove the audio unit screws (A), using power tool, then
remove the audio unit brackets (2).
6. Pull out the audio unit (3) from the audio controls (1).
INSTALLATION
Installation is in the reverse order of removal.
ALNIA1186ZZ
ALNIA1187ZZ
AV-84
Page 100
< ON-VEHICLE REPAIR >
Revision: October 2008
2009 Frontier
FRONT TWEETER
[PREMIUM AUDIO (KING CAB)]
FRONT TWEETER
Removal and Installation INFOID:0000000004057080
REMOVAL
CAUTION:
Use a suitable tool to prevent damage to the front tweeter speaker grille trim and the instrument panel.
1. Remove the front tweeter grille.
2. Remove the front tweeter screws (A).
3. Pull out the front tweeter speaker (1) and disconnect front
tweeter connector, then remove the front tweeter speaker (1).
ALNIA1074ZZ
INSTALLATION
Installation is in the reverse order of removal.
A
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AV-85
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