Infiniti M45 (Y34). Manual - part 616

CAN SYSTEM (TYPE 1)

LAN-31

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

Case 5

Check steering angle sensor circuit. Refer to 

LAN-34, "Steering Angle Sensor Circuit Check"

 .

Case 6

Check combination meter circuit. Refer to 

LAN-35, "Combination Meter Circuit Check"

 .

PKIA8637E

SKIA3976E

PKIA8638E

SKIA3977E

LAN-32

[CAN]

CAN SYSTEM (TYPE 1)

Case 7

Check CAN communication circuit. Refer to 

LAN-35, "CAN Communication Circuit Check"

 .

Circuit Check Between VDC/TCS/ABS Control Unit and Data Link Connector

AKS003WT

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Check following terminals and connector for damage, bend and loose connection (connector side and
harness side).

–

Harness connector M141

–

Harness connector B211

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect harness connector M135 and harness connector M141.

2.

Check continuity between harness connector M135 terminals
46T (L), 45T (R) and harness connector M141 terminals 52V (L),
53V (R).

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness.

3. 

CHECK HARNESS FOR OPEN CIRCUIT

Check continuity between harness connector B211 terminals 52V
(L), 53V (R) and harness connector B211 terminals 66V (L), 61V (R).

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness.

PKIA8639E

46T (L) – 52V (L)

: Continuity should exist.

45T (R) – 53V (R)

: Continuity should exist.

SKIA3882E

52V (L) – 66V (L)

: Continuity should exist.

53V (R) – 61V (R)

: Continuity should exist.

SKIA3883E

CAN SYSTEM (TYPE 1)

LAN-33

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

4. 

CHECK HARNESS FOR OPEN CIRCUIT

Check continuity between harness connector M141 terminals 66V
(L), 61V (R) and data link connector M31 terminals 6 (L), 3 (R).

OK or NG

OK

>> Connect all the connectors and diagnose again. Refer to

LAN-27, "Work Flow"

 .

NG

>> Repair harness.

ECM Circuit Check

AKS003WX

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Check following terminals and connector for damage, bend and loose connection (control module side
and harness side).

–

ECM connector

–

Harness connector F105

–

Harness connector M135

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect ECM connector.

2.

Check resistance between ECM harness connector F102 termi-
nals 174 (L) and 171 (R).

OK or NG

OK

>> Replace ECM.

NG

>> Repair harness between ECM and harness connector

M141.

VDC/TCS/ABS Control Unit Circuit Check

AKS003XB

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Check following terminals and connector for damage, bend and loose connection (control unit side and
harness side).

–

VDC/TCS/ABS control unit connector

–

Harness connector E222

–

Harness connector M132

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

66V (L) – 6 (L)

: Continuity should exist.

61V (R) – 3 (R)

: Continuity should exist.

SKIA3884E

174 (L) – 171 (R) 

: Approx. 108 – 132

Ω

PKIA0279E

LAN-34

[CAN]

CAN SYSTEM (TYPE 1)

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect VDC/TCS/ABS control unit connector.

2.

Check resistance between VDC/TCS/ABS control unit harness
connector E218 terminals 61 (L) and 63 (R).

OK or NG

OK

>> Replace VDC/TCS/ABS control unit.

NG

>> Repair harness between VDC/TCS/ABS control unit and

harness connector M141.

TCM Circuit Check

AKS003X6

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Check following terminals and connector for damage, bend and loose connection (control module side
and harness side).

–

TCM connector

–

Harness connector F105

–

Harness connector M135

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect TCM connector.

2.

Check resistance between TCM harness connector F103 termi-
nals 6 (L) and 7 (R).

OK or NG

OK

>> Replace TCM.

NG

>> Repair harness between TCM and data link connector.

Steering Angle Sensor Circuit Check

AKS003XA

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor
side and harness side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

61 (L) – 63 (R) 

: Approx. 54 – 66

Ω

PKIA0280E

6 (L) – 7 (R) 

: Approx. 54 – 66

Ω

PKIA0283E