Infiniti F50. Manual - part 627

 

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Infiniti F50. Manual - part 627

 

 

CAN SYSTEM (FOR VDC MODELS)

LAN-37

[CAN]

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5. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between Data Link Connector M31 terminals 6 (LG/
B), 3(P/B) and ground.

OK or NG

OK

>> GO TO 6.

NG

>>

Repair harness between harness connector M6 and
harness connector M135.

Repair harness between harness connector M6 and
Data Link Connector.

Repair harness between harness connector M6 and combination meter.

Repair harness between harness connector M6 and steering angle sensor.

6. 

CHECK HARNESS FOR SHORT CIRCUIT

1.

Disconnect harness connector B63.

2.

Check continuity between harness connector B6 terminals
23(LG/B) and 24(P/B).

OK or NG

OK

>> GO TO 7.

NG

>> Repair harness between harness connector B6 and har-

ness connector B63.

7. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between harness connector B6 terminals 23(LG/B),
24(P/B) and ground.

OK or NG

OK

>> GO TO 8.

NG

>> Repair harness between harness connector B6 and har-

ness connector B63.

6(LG/B) – ground

: Continuity should not exist.

3(P/B) – ground

: Continuity should not exist.

PKIA0286E

23(LG/B) – 24(P/B) 

: Continuity should not exist.

PKIA0287E

23(LG/B) – ground

: Continuity should not exist.

24(P/B) – ground

: Continuity should not exist.

PKIA0288E

LAN-38

[CAN]

CAN SYSTEM (FOR VDC MODELS)

8. 

CHECK HARNESS FOR SHORT CIRCUIT

1.

Disconnect harness connector B204.

2.

Check continuity between harness connector B263 terminals
9(LG/B) and 8(P/B).

OK or NG

OK

>> GO TO 9.

NG

>> Repair harness between harness connector B263 and

harness connector B204.

9. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between harness connector B263 terminals 9(LG/
B), 8(P/B) and ground.

OK or NG

OK

>> GO TO 10.

NG

>> Repair harness between harness connector B263 and

harness connector B204.

10. 

CHECK HARNESS FOR SHORT CIRCUIT

1.

Disconnect VDC/TCS/ABS control unit connector and harness connector E34.

2.

Check continuity between VDC/TCS/ABS control unit harness
connector E218 terminals 61 (LG/B) and 63(P/B).

OK or NG

OK

>> GO TO 11.

NG

>>

Repair harness between harness connector E34 and
harness connector E224.

Repair harness between harness connector E34 and
VDC/TCS/ABS control unit.

11. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between VDC/TCS/ABS control unit harness con-
nector E218 terminals 61 (LG/B), 63(P/B) and ground.

OK or NG

OK

>> GO TO 12.

NG

>>

Repair harness between harness connector E34 and
harness connector E224.

Repair harness between harness connector E34 and
VDC/TCS/ABS control unit.

9(LG/B) – 8(P/B) 

: Continuity should not exist.

PKIA0289E

9(LG/B) – ground

: Continuity should not exist.

8(P/B) – ground

: Continuity should not exist.

PKIA0290E

61(LG/B) – 63(P/B) 

: Continuity should not exist.

PKIA0280E

61(LG/B) – ground

: Continuity should not exist.

63(P/B) – ground

: Continuity should not exist.

PKIA0291E

CAN SYSTEM (FOR VDC MODELS)

LAN-39

[CAN]

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12. 

CHECK HARNESS FOR SHORT CIRCUIT

1.

Disconnect ECM connector.

2.

Check continuity between ECM harness connector F102 termi-
nals 174 (LG/B) and 171(P/B).

OK or NG

OK

>> GO TO 13.

NG

>> Repair harness between ECM and harness connector

F34.

13. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between ECM harness connector F102 terminals
174 (LG/B), 171 (P/B) and ground.

OK or NG

OK

>> GO TO 14.

NG

>> Repair harness between ECM and harness connector

F34.

14. 

ECM/TCM INTERNAL CIRCUIT INSPECTION

Check components inspection. Refer to 

LAN-39, "ECM/TCM INTERNAL CIRCUIT INSPECTION"

OK or NG

OK

>> Reconnect all connectors to perform “SELF-DIAG RESULTS” and “DATA MONITOR” for 

“ENGINE”, “A/T”, and “VDC”. Refer to the following:

EC-141, "DTC U1000, U1001 CAN COMMUNICATION LINE"

 for “ENGINE”

AT-99, "DTC U1000 CAN COMMUNICATION LINE"

 for “A/T”

BRC-58, "Inspection 16 CAN Communications Lines, VDC/TCS/ABS Control Unit and Steering
Angle Sensor System"

 for “VDC”

NG

>> Replace ECM and/or TCM.

Component Inspection

EKS003LJ

ECM/TCM INTERNAL CIRCUIT INSPECTION

Remove ECM and TCM from vehicle.

Check resistance between ECM terminals 174 and 171.

Check resistance between TCM terminals 6 and 7.

174(LG/B) – 171(P/B) 

: Continuity should not exist.

PKIA0279E

174(LG/B) – ground

: Continuity should not exist.

171(P/B) – ground

: Continuity should not exist.

PKIA0292E

Unit

Terminal

Resistance value (

)

ECM

174 – 171

Approx. 108 - 132

TCM

6 – 7

PKIA0298E

LAN-40

[CAN]

CAN SYSTEM (FOR ICC MODELS)

CAN SYSTEM (FOR ICC MODELS)

PFP:18995

System Description

EKS003LX

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 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.

Component Parts and Harness Connector Location

EKS003LY

SKIA3778E

 

 

 

 

 

 

 

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