Infiniti Q45. Manual - part 663

 

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Infiniti Q45. Manual - part 663

 

 

TROUBLE DIAGNOSIS FOR SYSTEM

LAN-101

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

4. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect harness connector M23.

2.

Check continuity between harness connector (A) and harness
connector (B).

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness.

5. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect LDW camera unit connector.

2.

Check continuity between harness connector (A) and LDW cam-
era unit connector (B).

OK or NG

OK

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

LAN-19, "TROUBLE DIAGNOSES WORK FLOW"

 .

NG

>> Repair harness.

Inspection Between RAS Control Unit and Data Link Connector Circuit

NKS002IS

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

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

Harness connector B6

Harness connector M6

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M6

23

M23

22

Yes

24

23

Yes

SKIB7534E

A

B

Continuity

Connector

Terminal

Connector

Terminal

R3

22

R26

10

Yes

23

5

Yes

SKIB7535E

LAN-102

[CAN]

TROUBLE DIAGNOSIS FOR SYSTEM

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect RAS control unit connector and harness connector B6.

2.

Check continuity between RAS control unit harness connector
(A) and harness connector (B).

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness.

3. 

CHECK HARNESS FOR OPEN CIRCUIT

Check continuity between harness connector (A) and data link con-
nector (B).

OK or NG

OK

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

LAN-19, "TROUBLE DIAGNOSES WORK FLOW"

 .

NG

>> Repair harness.

Inspection Between LDW Camera Unit and Data Link Connector Circuit

NKS002IU

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

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

Harness connector R3

Harness connector M23

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect LDW camera unit connector and harness connector R3.

2.

Check continuity between LDW camera unit harness connector
(A) and harness connector (B).

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness.

A

B

Continuity

Connector

Terminal

Connector

Terminal

B39

1

B6

23

Yes

8

24

Yes

SKIB7533E

A

B

Continuity

Connector

Terminal

Connector

Terminal

M6

23

M31

6

Yes

24

14

Yes

SKIB7538E

A

B

Continuity

Connector

Terminal

Connector

Terminal

R26

10

R3

5

Yes

5

6

Yes

SKIB7536E

TROUBLE DIAGNOSIS FOR SYSTEM

LAN-103

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

3. 

CHECK HARNESS FOR OPEN CIRCUIT

Check continuity between harness connector (A) and data link con-
nector (B).

OK or NG

OK

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

LAN-19, "TROUBLE DIAGNOSES WORK FLOW"

 .

NG

>> Repair harness.

ECM Circuit Inspection

NKS002IV

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

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

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 terminals.

OK or NG

OK

>> Replace ECM.

NG

>> Repair harness between ECM and A/T assembly.

TCM Circuit Inspection

NKS002IW

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check terminals and connector of A/T assembly for damage, bend and loose connection (control module
side and harness side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M23

5

M31

6

Yes

6

14

Yes

SKIB7537E

ECM connector

Terminal

Resistance

(Approx.)

F101

94

86 

108 – 132 

PKIA9592E

LAN-104

[CAN]

TROUBLE DIAGNOSIS FOR SYSTEM

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect A/T assembly connector.

2.

Check resistance between A/T assembly harness connector ter-
minals.

OK or NG

OK

>> Replace control valve with TCM.

NG

>> Repair harness between A/T assembly and ECM.

ICC Sensor Circuit Inspection

NKS002IX

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

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

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect ICC sensor connector.

2.

Check resistance between ICC sensor harness connector termi-
nals.

OK or NG

OK

>> Replace ICC sensor.

NG

>> Repair harness between ICC sensor and VDC/TCS/

ABS control unit.

VDC/TCS/ABS Control Unit Circuit Inspection

NKS002IY

1. 

CHECK CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Check terminals and connector of VDC/TCS/ABS control unit for damage, bend and loose connection
(control unit side and harness side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

A/T assembly con-

nector

Terminal

Resistance

(Approx.)

F26

3

54 – 66 

SKIA6866E

ICC sensor

connector

Terminal

Resistance

(Approx.)

E52

3

54 – 66 

PKIA9878E

 

 

 

 

 

 

 

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