Nissan XTrail T30 2005 User Manual

LAN SYSTEM

K ELECTRICAL

SECTION LAN

CONTENTS

CAN

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

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

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

Precautions for Trouble Diagnosis ........................... 3

CAN SYSTEM ....................................................... 3

Precautions for Harness Repair ............................... 3

CAN SYSTEM ....................................................... 3

TROUBLE DIAGNOSES WORK FLOW .................... 4

When Displaying CAN Communication System

Errors ....................................................................... 4

WHEN A MALFUNCTION IS DETECTED BY

CAN COMMUNICATION SYSTEM ....................... 4

WHEN A MALFUNCTION IS DETECTED

EXCEPT CAN COMMUNICATION SYSTEM ........ 4

TROUBLE DIAGNOSIS FLOW CHART ............... 5

Diagnosis Procedure ................................................ 6

SELECTING CAN SYSTEM TYPE (HOW TO

USE SPECIFICATION TABLE) ............................. 6

ACQUISITION OF DATA BY CONSULT-II ............ 7

HOW TO USE CHECK SHEET TABLE ................ 8

CAN Diagnostic Support Monitor ........................... 13

DESCRIPTION OF “CAN DIAG SUPPORT

MNTR” SCREEN FOR ECM ............................... 13

DESCRIPTION OF “CAN DIAG SUPPORT

MNTR” SCREEN FOR TCM ............................... 14

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ABS ACTUATOR AND

ELECTRIC UNIT (CONTROL UNIT) ................... 14

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR VDC/TCS/ABS CON-

TROL UNIT ......................................................... 15

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR AWD CONTROL UNIT ... 15

LAN SYSTEM

CAN COMMUNICATION ........................................... 16

System Description .................................................16

CAN Communication Unit .......................................16

TYPE 1 ................................................................ 16

TYPE 2 ................................................................ 17

TYPE 3 ................................................................ 18

TYPE 4 ................................................................ 19

TYPE 5 ................................................................ 20

CAN SYSTEM (TYPE 1) ........................................... 22

Component Parts and Harness Connector Location ...22

Wiring Diagram — CAN — .....................................23

Check Sheet ...........................................................25

CHECK SHEET RESULTS (EXAMPLE) .............26

Between TCM and ABS Actuator and Electric Unit

(Control Unit) Circuit Inspection .............................. 31

ECM Circuit Inspection ...........................................32

TCM Circuit Inspection ........................................... 33

ABS Actuator and Electric Unit (Control Unit) Circuit

Inspection ...............................................................33

Combination Meter Circuit Inspection .....................34

CAN Communication Circuit Inspection .................35

CAN SYSTEM (TYPE 2) ........................................... 39

Component Parts and Harness Connector Location ...39

Wiring Diagram — CAN — .....................................40

Check Sheet ...........................................................42

CHECK SHEET RESULTS (EXAMPLE) .............43

Between ABS Actuator and Electric Unit (Control

Unit) and AWD Control Unit Circuit Inspection .......48

ECM Circuit Inspection ...........................................49

ABS Actuator and Electric Unit (Control Unit) Circuit

Inspection ...............................................................49

AWD Control Unit Circuit Inspection .......................50

Combination Meter Circuit Inspection .....................50

CAN Communication Circuit Inspection .................51

CAN SYSTEM (TYPE 3) ........................................... 55

Component Parts and Harness Connector Location ...55

Wiring Diagram — CAN — .....................................56

Check Sheet ...........................................................58

CHECK SHEET RESULTS (EXAMPLE) .............59

Between TCM and ABS Actuator and Electric Unit

LAN

Revision: 2005 March 2005 X-Trail

LAN-1

(Control Unit) Circuit Inspection ..............................66

Between ABS Actuator and Electric Unit (Control

Unit) and AWD Control Unit Circuit Inspection .......67

ECM Circuit Inspection ............................. ....... .......68

TCM Circuit Inspection ...........................................69

ABS Actuator and Electric Unit (Control Unit) Circuit

Inspection ...............................................................69

AWD Control Unit Circuit Inspection .......................70

Combination Meter Circuit Inspection .....................70

CAN Communication Circuit Inspection .................. 71

CAN SYSTEM (TYPE 4) ...........................................76

Component Parts and Harness Connector Location ... 76

Wiring Diagram — CAN — .....................................77

Check Sheet ...........................................................79

CHECK SHEET RESULTS (EXAMPLE) .............80

Between VDC/TCS/ABS Control Unit and AWD

Control Unit Circuit Inspection ................................86

ECM Circuit Inspection ............................. ....... .......87

VDC/TCS/ABS Control Unit Circuit Inspection .......87

Steering Angle Sensor Circuit Inspection ...............88

AWD Control Unit Circuit Inspection .......................88

Combination Meter Circuit Inspection .....................89

CAN Communication Circuit Inspection ..................89

CAN SYSTEM (TYPE 5) ............................................93

Component Parts and Harness Connector Location ...93

Wiring Diagram — CAN — .....................................94

Check Sheet ................................... ....... ...... ....... ....96

CHECK SHEET RESULTS (EXAMPLE) ..............97

Between TCM and VDC/TCS/ABS Control Unit Cir-

cuit Inspection .......................................................105

Between VDC/TCS/ABS Control Unit and AWD

Control Unit Circuit Inspection ..............................106

ECM Circuit Inspection ....................................... ..107

TCM Circuit Inspection ..........................................107

VDC/TCS/ABS Control Unit Circuit Inspection .....108

Steering Angle Sensor Circuit Inspection ..............108

AWD Control Unit Circuit Inspection .....................109

Combination Meter Circuit Inspection ...................109

CAN Communication Circuit Inspection ................110

Revision: 2005 March 2005 X-Trail

LAN-2

PRECAUTIONS

[CAN]

PRECAUTIONS PFP:00001

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

AKS00BCH

The Supplemental Rest raint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used al ong with a front seat belt, helps to redu ce th e risk or se verit y of i njury to the driv er and front passenge r for ce rtain types of col lision. Information necessary to service the system safely is includ ed in the SRS a nd SB section of this Service Manual.

WARNING:

● To avoid rendering the SRS inopera tive, whi ch could incr ease the risk of pe rsonal 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, inc luding incorrect removal and installation of the SRS, can lead to per-

sonal injury ca use d by unintentional ac tiv atio n o f the s ys t em . F or re mo va l of Spiral Cable and Ai r Bag Module, see the SRS sec tion.

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

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

Precautions for Trouble Diagnosis AKS00BCI

CAN SYSTEM

● Do not apply voltage of 7.0 V or higher to the measurement terminals.

● Use the tester with its open terminal voltage being 7.0 V or less.

● Be sure to turn ignition switch off and disconnect battery cable at negative terminal before checking the

circuit.

Precautions for Harness Repair AKS00BCJ

CAN SYSTEM

● Solder the repaired parts, and wrap with tape. [Frays of twisted

line must be within 110 mm (4.33 in)]

● Do not perform bypass wire connections for the repair parts.

(The spliced w ire wi ll become separated and the c haracte ristics of twisted line will be lost.)

LAN

PKIA0306E

PKIA0307E

Revision: 2005 March 2005 X-Trail

LAN-3

TROUBLE DIAGNOSES WORK FLOW

[CAN]

TROUBLE DIAGNOSES WORK FLOW PFP:00004 When Displaying CAN Communication System Errors AKS00BQF

WHEN A MALFUNCTION IS DETECTED BY CAN COMMUNICATION SYSTEM

● CAN communication line is open. (CAN H, CAN L, or both)

● CAN communication line is shorted. (Ground, between CAN lines, or other harnesses)

● The areas related to CAN communication of unit is malfunctioning.

WHEN A MALFUNCTION IS DETECTED EXCEPT CAN COMMUNICATION SYSTEM

● Removal and installation of parts: When the units that perform CAN communication or the sensors related

to CAN communi ca tio n are rem ov e d a nd installed, malfunction may be dete ct ed (or D T C oth er tha n C A N communicatio n ma y be dete cted).

● Fuse blown out (removed): CAN communication of the unit may be stopped at such time.

● Low voltage: If the v ol tage d ec r ea s es be ca us e of b attery discharg e wh en IG N i s O N , ma lfu nc tion may be

detected by self-diagnos is according to the units.

Revision: 2005 March 2005 X-Trail

LAN-4

TROUBLE DIAGNOSES WORK FLOW

TROUBLE DIAGNOSIS FLOW CHART

[CAN]

PKIA8959E

● Step 1: Refer to LAN-6, "SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE)" .

● Step 2: Refer to LAN-7, "ACQUISITION OF DATA BY CONSULT-II" .

● Step 3: Refer to LAN-8, "HOW TO USE CHECK SHEET TABLE" .

● Step 4: Refer to LAN-9, "Example of Filling i n Check Sheet Wh en Initial Conditions Are Repr oduced" .

● Step 5: Check and repair according to system diagnosis.

LAN

Revision: 2005 March 2005 X-Trail

LAN-5

TROUBLE DIAGNOSES WORK FLOW

[CAN]

Diagnosis Procedur e AKS00BQG

SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATI ON TABLE)

Determine CAN system type from the equipment of the vehicle to select applicable check sheet.

PKIA8960E

Revision: 2005 March 2005 X-Trail

LAN-6

TROUBLE DIAGNOSES WORK FLOW

[CAN]

ACQUISITION OF DATA BY CONSULT-II

Attach the data acquired by CONSULT-II on the check sheet determined according to CAN system type.

PKIA8961E

LAN

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LAN-7

TROUBLE DIAGNOSES WORK FLOW

[CAN]

HOW TO USE CHECK SHEET TABLE

PKIA8962E

1. Unit names displayed on CONSULT-II

2. “NG”: Display “NG” wh en malf unct ion is d ete cted in the in itial diag nosis o f the diagno sed un it. R eplace the unit if “NG” is displaye d. “–”: Column not used (Initial diagnosis is not performed.)

3. “UNKWN”: Display “UNKWN” when the diagnosed unit does not transmit the data normally. Put a check mark to it if “UNKWN” is displayed on CONSULT-II.

4. “UNKWN”: Disp lay “UNKWN” when the diagn osed unit does not recei ve the data normally. Put a check mark to it if “UNKWN” is displayed on CONSULT-II. “–”: Column not used (It is not ne cessary for CAN communication tr ouble diagnosis.)

NOTE:

CAN communicat ion diag nosis chec ks if CAN co mmun icat ion w orks n ormal ly. (Contents of data are not diagnosed.)

● Refer to LAN-9, "Example of Filling in Check Sheet When Initial Conditions Are Reproduced" when the

initial conditions are reproduced.

● Refer to LAN-11, "Example of Filling in Check Sheet When Init ial Con ditio ns Are N ot Repr od uced " wh en

the initial conditions are not reproduced.

Revision: 2005 March 2005 X-Trail

LAN-8

TROUBLE DIAGNOSES WORK FLOW

Example of Filling in Check Sheet When Initial Conditions Are Reproduced

[CAN]

PKIA8963E

1. Confirm the unit name that “UNKWN” is displayed from the copy of “CAN DIAG SUPPORT MNTR” screen of “ENGINE” attached to the check sheet, and then put a check mark to the check sheet table.

NOTE:

In “CAN DIAG SUPPORT MNTR” screen, “UNKWN” is dis played on “VDC/TCS/ABS”, “METER/M&A”, “ICC”, “BCM/SEC”, “IPDM E/R”, “AWD/4WD/e4WD” and “EPS”. But put a check mark to “VDC/TCS/ABS” and “METER/M&A” because “UNKWN” is listed on the column of reception diagnosis of the check sheet table.

2. Confirm the unit name that “UNKWN” is dis played on the co py of “CAN DIAG SUPPORT MNTR” sc reen of “A/T”, “ABS”, and “ALL MODE AWD/4WD” as well as “ENGINE”. And then, put a check mark to the check sheet table.

NOTE:

● For “A/T”, “UNKWN” is displayed on “VDC/TCS/A BS”, “METER/M&A” and “ICC/e4WD”. Put a check

mark to “VDC/TCS/ABS” and “METER/M&A” columns of reception diagnosis on the check sheet table. (It is not necessary to put a check mark for “ICC/e4WD”, which is not listed on the check sheet table.)

● For “ABS”, “UNKWN” is displayed on “ECM”. Put a check mark to it.

● For “ALL MODE AWD/4WD”, “UNKWN” is displayed on “ECM” and “TCM”. Put a chec k mark to “ ECM”

columns of reception diagnosis on the check sheet table. (It is not necessary to put a check mark for “TCM”, which is not listed on the check sheet table.)

LAN

Revision: 2005 March 2005 X-Trail

LAN-9

TROUBLE DIAGNOSES WORK FLOW

[CAN]

PKIA8964E

NOTE:

There is a check mark both in “VDC/TCS/ABS” and “METER/M&A” of “A/T ” in “The arra nged results of CA N diagnosis support monitor” sheet. Also, there is a mark of “–” both in “VDC/TCS/ABS” and “METER/M&A” of “A/T” in the check sheet results (example). Therefore, ignore a check mark both in “VDC/TCS/ABS” and “METER/M&A” of “A/T” in “The arranged results of CAN diagnosis support monitor” sheet.

3. Perform syste m di ag no sis for possible causes ide nti fie d.

4. Perform dia gnosis again after insp ection and repai r. Make sure that repair i s completely performed, and then end the procedure.

Start CAN system trouble diagnosis if this procedure can be confirmed. LAN-16, "

Revision: 2005 March 2005 X-Trail

LAN-10

CAN Communication Unit"

TROUBLE DIAGNOSES WORK FLOW

Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced

[CAN]

PKIA8965E

1. See “SELF -DIAG RESULTS” of all units attached to the check shee t. If “CAN COMM CIRCUIT”, “CAN COMM CIRCUIT [U1000]” or “CAN COMM CIRCUIT [U1001]” is displayed, put a check mark to the applicable column of self-diagnostic results of the check sheet table.

NOTE:

● For “ENGINE”, “CAN COMM CIRCUIT [U1001]” are displayed. Put a check mark to it.

● For “A/T”, “CAN COMM CIRCUIT” is displayed. Put a check mark to it.

● For “ABS”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.

● For “ALL MODE AWD/4WD”, “CAN COMM CIRCUIT [U1000]” is displayed. Put a check mark to it.

LAN

Revision: 2005 March 2005 X-Trail

LAN-11

TROUBLE DIAGNOSES WORK FLOW

[CAN]

PKIA8966E

NOTE:

There is a check mark in “CAN COMM CIRCUIT (U1000)” of “A/T” in “The arranged results of self-diagnosis” sheet. Also, there is a mark of “–” in “CAN COMM CIRCUIT (U1000)” of “A/T” in “The arranged results of selfdiagnosis” sheet. Therefore, ignore a check mark in “CAN COMM CIRCUIT (U1000)” of “A/T” in “The arranged results of se lf-diagnosis” sheet.

2. For the selected possible causes, it is expected that malfunctions have been found in the past.

Revision: 2005 March 2005 X-Trail

LAN-12

TROUBLE DIAGNOSES WORK FLOW

[CAN]

CAN Diagnostic Support Monitor AKS00BQH

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ECM

PKIA8945E

“SELECT SYSTEM”

screen

ENGINE

“CAN DIAG SUPPORT

MNTR” screen INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN TCM Make sure of normal reception from TCM. OK/UNKWN

VDC/TCS/ABS is not diagnosed. (ABS models) UNKWN

VDC/TCS/ABS

METER/M&A Make sure of normal reception from combin ation meter. OK/UNKWN ICC ICC is not diagnosed. UNKWN BCM/SEC BCM/SEC is not diagnosed. UNKWN IPDM E/R IPDM E/R is not diagnosed. UNKWN AWD/4WD/e4WD AWD/4WD/e4WD is not diagnosed. UNKWN EPS EPS is not diagnosed. UNKWN

Make sure of normal reception from VDC/TCS/ABS control unit. (VDC models)

Description Present

Display Result s (Present)

● OK: Normal

● NG: Malfunction

● UNKWN: The diagnosed unit does not transmi t or receiv e the applic abl e data norma lly.

OK/UNKWN

LAN

Revision: 2005 March 2005 X-Trail

LAN-13

TROUBLE DIAGNOSES WORK FLOW

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR TCM

[CAN]

PKIA8946E

“SELECT SYSTEM”

screen

A/T

“CAN DIAG SUPPORT

MNTR” screen INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN ECM Make sure of normal reception from ECM. OK/UNKWN

VDC/TCS/ABS is not diagnosed. (ABS models) UNKWN

VDC/TCS/ABS

METER/M&A Make sure of normal reception from com binat i on m et er. OK/UNKWN ICC/e4WD ICC/e4WD is not diagnosed. UNKWN

Make sure of normal reception from VDC/TCS/ABS control unit. (VDC models)

Description Present

Display Res ul ts (Pr es ent)

● OK: Normal

● NG: Malfunction

● UNKWN: The diagnosed unit does not transmit or receive t he appl icabl e data norm al ly.

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

OK/UNKWN

PKIA8949E

“SELECT SYSTEM”

screen

ABS

“CAN DIAG SUPPORT MNTR”

screen INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG TRANSMIT DIAG Make sure of norm al transm is sion. OK/UNKWN ECM Make sure of normal reception from ECM. OK/UNKWN

Description Present

Display Res ul ts (Pr es ent)

● OK: Normal

● NG: Malfunction

● UNKWN: The diagnosed unit does not transmit or receive t he appl icabl e data norm al ly.

Revision: 2005 March 2005 X-Trail

LAN-14

TROUBLE DIAGNOSES WORK FLOW

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR VDC/TCS/ABS CONTROL UNIT

“SELECT SYSTEM”

screen

ABS

“CAN DIAG SUPPORT MNTR”

screen INITIAL DIAG Make sure tha t microc om put er in EC U works normally. OK/UNKWN TRANSMIT DIAG Make sure of normal transmission. OK/UNKWN ECM Make sure of normal reception from ECM. OK/ U NK WN

TCM STRG Make sure of normal reception from Steering angle sensor. OK/UNKWN

AWD/4WD M ake sure of normal reception from AWD control unit. OK/UNKWN

Make sure of normal reception from TCM. (Not available for CAN system diagnosis.)

[CAN]

PKIA8947E

Description Present

OK/UNKWN

Display Result s (Present)

● OK: Normal

● NG: Malfunction

● UNKWN: The diagnosed unit does not transmi t or receiv e the applic abl e data norma lly.

DESCRIPTION OF “CAN DIAG SUPPORT MNTR” SCREEN FOR AWD CONTROL UNIT

“SELECT SYSTEM”

screen

ALL MODE AWD/ 4WD

“CAN DIAG SUPPORT

MNTR” screen INITIAL DIAG Make sure that microcomputer in ECU works normally. OK/NG TRANSMIT DIAG Make sur e of norm al transm i ssion. OK/UNKWN

Make sure of normal reception from ABS actuator and electric

VDC/TCS/ABS

ECM Make sure of normal reception from ECM. OK/UNKWN TCM TCM is not diagnosed. UNKWN

METER/M&A

unit (control unit). Make sure of normal reception from VDC/TCS/ABS control unit. OK/UNKWN

Make sure of normal reception from comb in ation met er. (Not available for CAN system diagnosis.)

Description Present

PKIA8948E

OK/UNKWN

LAN

Display Result s (Present)

● OK: Normal

● NG: Malfunction

● UNKWN: The diagnosed unit does not transmi t or receiv e the applic abl e data norma lly.

Revision: 2005 March 2005 X-Trail

LAN-15

CAN COMMUNICATION

[CAN]

CAN COMMUNICATION PFP:23710 System Description AKS00BCK

CAN (Controller Area N et w ork ) is a s eri al co mm u nic a tio n l ine for real time appl ic ati on . It is an on-vehicle multiplex communi catio n lin e wit h high da t a comm unic ation speed and ex cellen t er ror det ecti on ab ilit y. Many electronic control u nits are eq uipped o nto a ve hicle, a nd eac h control unit sh ares info rmation and link s with ot her control units duri ng operation (not independent). In CAN communicatio n, control units ar e connected wi th 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit AKS00BCL

Go to CAN system, when selecting your CAN system type from the following table.

Body type Wagon Axle 2WD AWD Engine QR25DE Transmission A/T M/T A/T M/T A/T Brake control ABS VDC CAN system type 1 2 3 4 5 CAN system trouble diagnosis LAN-22

LAN-39 LAN-55 LAN-76 LAN-93

TYPE 1 System Diagram

PKIA9660E

SKIB0001E

Revision: 2005 March 2005 X-Trail

LAN-16

CAN COMMUNICATION

[CAN]

Input/Output Signal Chart

T: Transmit R: Receive

ABS actuator and

Signals ECM TCM

Stop lamp switch signal R T A/T self-diagnosis signal R T A/T position indicator lamp signal T R Overdrive control switch signal R T O/D OFF indicator signal T R Closed throttle position signal T R Wide open throttle position signal T R Engine speed signal T R Engine coolant temperature signal T R Output shaft revolution signal R T A/C compressor feedback signal T R

Vehicle speed signal

ABS warning lamp signal TR Fuel level sensor signal R T Malfunction indicator lamp signal T R ASCD SET lamp signal T R ASCD CRUISE lamp signal T R

Engine A/T integrated control signal

Snow mode switch signal R T

TR RT

electric unit

(control unit)

Combination meter

TYPE 2 System Diagram

LAN

PKIA8837E

Revision: 2005 March 2005 X-Trail

LAN-17

CAN COMMUNICATION

[CAN]

Input/Output Signal Chart

T: Transmit R: Receive

ABS actuator and

Signals ECM

Stop lamp switch signal T R Engine speed signal T R R Engine coolant temperature signal T R Accelerator pedal position signal T R A/C compressor feedback signal T R

Vehicle speed signal

ABS warning lamp signal T R AWD warning lamp signa l TR AWD mode indicator lamp signal T R Parking brake switch signal R T Fuel level sensor signal R T Malfunction indicator lamp signal T R ASCD SET lamp signal T R ASCD CRUISE lamp signal T R

electric unit (control

unit)

TRR

AWD control unit Combination meter

TYPE 3 System Diagram

Input/Output Signal Chart

T: Transmit R: Receive

ABS actuator

Signals ECM TCM

Stop lamp switch signal

A/T self-diagnosis signal R T A/T position indicator lamp signal T R Overdrive control switch signal R T

and electric unit

(control unit)

AWD control

unit

Combination

PKIA8843E

meter

Revision: 2005 March 2005 X-Trail

LAN-18

CAN COMMUNICATION

[CAN]

ABS actuator

Signals ECM TCM

O/D OFF indicator signal T R Closed throttle position signal T R Wide open throttle position signal T R Engine speed signal T R R Engine coolant temperature signal T R Output shaft revolution signal R T A/C compressor feedback signal T R

Vehicle speed signal

ABS warning lamp signal T R AWD warning lamp signa l TR AWD mode indicator lamp signal TR Parking brake switch signal RT Fuel level sensor signal R T Malfunction indicator lamp signal T R ASCD SET lamp signal T R ASCD CRUISE lamp signal T R

Engine A/T integrated control signal

R T

TR RT

and electric unit

(control unit)

TRR

AWD control

unit

Combination

meter

TYPE 4 System Diagram

Input/Output Signal Chart

T: Transmit R: Receive

Signals ECM

Stop lamp switch signal T R Engine speed signal T R R R Engine coolant temperature signa l T R

VDC/TCS/ABS

control unit

Steering angle

sensor

AWD control

unit

Combination

LAN

PKIA8851E

meter

Revision: 2005 March 2005 X-Trail

LAN-19

CAN COMMUNICATION

[CAN]

Signals ECM

Accelerator pedal position signal T R R A/C compressor feedback signal T R

Vehicle speed signal

ABS warning lamp signal T R Brake warning lamp signal T R SLIP indicator lamp signal T R VDC OFF indicator lamp signal T R AWD warning lamp signal TR AWD mode indicator lamp signal TR Parking brake switch signal RT Fuel level sensor signal R T Malfunction indicator lamp signal T R ASCD SET lamp signal T R ASCD CRUISE lamp signal T R Steering angle sensor signal R T

R T

VDC/TCS/ABS

control unit

TRR

Steering angle

sensor

AWD control

unit

Combination

meter

TYPE 5 System Diagram

PKIA8858E

Input/Output Signal Chart

T: Transmit R: Receive

VDC/TCS/

Signals ECM TCM

Stop lamp switch signal

A/T position indicator lamp signal T R R O/D OFF indicator signal T R Overdrive control switch signal R T Closed throttle position signal T R

Revision: 2005 March 2005 X-Trail

LAN-20

ABS control

unit

Steering

angle sensor

AWD control

unit

Combination

meter

CAN COMMUNICATION

[CAN]

VDC/TCS/

Signals ECM TCM

Wide open throttle position signal T R Engine speed signal T R R R Engine coolant temperature signal T R Accelerator pedal position signal T R R Output shaft revolution signal R T A/C compressor feedback signal T R

Vehicle speed signal

Engine and A/T integrated control signal

A/T self-diagnosis signal R T

R T

TR RT

ABS control

unit

TRR

Steering

angle sensor

AWD control

unit

Combination

meter

LAN

Revision: 2005 March 2005 X-Trail

LAN-21

CAN SYSTEM (TYPE 1)

[CAN]

CAN SYSTEM (TYPE 1) PFP:23710 Component Parts and Harness Connector Location AKS00BK2

SKIB0329E

Revision: 2005 March 2005 X-Trail

LAN-22

CAN SYSTEM (TYPE 1)

[CAN]

Wiring Diagram — CAN — AKS00BK3

LAN

TKWB0214E

Revision: 2005 March 2005 X-Trail

LAN-23

CAN SYSTEM (TYPE 1)

[CAN]

TKWB0215E

Revision: 2005 March 2005 X-Trail

LAN-24

CAN SYSTEM (TYPE 1)

[CAN]

Check Sheet AKS00BK4

NOTE:

If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.

LAN

PKIA8754E

Revision: 2005 March 2005 X-Trail

LAN-25

CAN SYSTEM (TYPE 1)

[CAN]

CHECK SHEET RESULTS (EXAMPLE)

NOTE:

If a check mark i s put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.

Case 1

Check harness between TCM and ABS actuator and electric unit (control unit). Refer to LAN-31, "Between

TCM and ABS Actuator and Electric Unit (Control Unit) Circuit Inspection" .

PKIA8755E

PKIA7564E

Revision: 2005 March 2005 X-Trail

LAN-26

CAN SYSTEM (TYPE 1)

Case 2

Check ECM circu it. Ref er to LAN-32, "ECM Circuit Inspection" .

[CAN]

PKIA8756E

PKIA7565E

LAN

Revision: 2005 March 2005 X-Trail

LAN-27

CAN SYSTEM (TYPE 1)

Case 3

Check TCM circuit. Refer to LAN-33, "TCM Circuit Inspection" .

[CAN]

PKIA8757E

PKIA7566E

Revision: 2005 March 2005 X-Trail

LAN-28

CAN SYSTEM (TYPE 1)

[CAN]

Case 4

Check ABS actuator and electric un it (control unit) circuit. Refer to LAN-33, "ABS Actuator and Electric Unit

(Control Unit) Circuit Inspection" .

PKIA8758E

PKIA7567E

LAN

Revision: 2005 March 2005 X-Trail

LAN-29

CAN SYSTEM (TYPE 1)

Case 5

Check combination meter circuit. Refer to LAN-34, "Combination Meter Circuit Insp ec ti on " .

[CAN]

PKIA8759E

PKIA7568E

Revision: 2005 March 2005 X-Trail

LAN-30

+ 84 hidden pages