Nissan Altima L32. Manual - part 878

LAN

M&A BRANCH LINE CIRCUIT

LAN-41

< COMPONENT DIAGNOSIS >

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M&A BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000004203876

INSPECTION PROCEDURE

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the combination meter for damage, bend and loose connection

(unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of combination meter.

2. Check the resistance between the combination meter harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the combination meter branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the combination meter. Refer to 

MWI-43, "COMBINATION

METER : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the combination meter. Refer to 

MWI-176, "Removal and Installation"

.

YES (Past error)>>Error was detected in the combination meter branch line.

NO

>> Repair the power supply and the ground circuit.

Combination meter harness connector

Resistance (

Ω)

Connector No.

Terminal No.

M24

21

22

Approx. 54 – 66

LAN-42

< COMPONENT DIAGNOSIS >

[CAN]

STRG BRANCH LINE CIRCUIT

STRG BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000004203877

INSPECTION PROCEDURE

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the steering angle sensor for damage, bend and loose connection

(unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of steering angle sensor.

2. Check the resistance between the steering angle sensor harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the steering angle sensor branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the steering angle sensor. Refer to 

BRC-207, "Wiring Dia-

gram - Coupe"

  or 

BRC-215, "Wiring Diagram - Sedan"

.

Is it normal?

YES (Present error)>>Replace the steering angle sensor. Refer to 

BRC-242, "Removal and Installation"

 .

YES (Past error)>>Error was detected in the steering angle sensor branch line.

NO

>> Repair the power supply and the ground circuit.

Steering angle sensor harness connector

Resistance (

Ω)

Connector No.

Terminal No.

M53

5

2

Approx. 54 – 66

LAN

ABS BRANCH LINE CIRCUIT

LAN-43

< COMPONENT DIAGNOSIS >

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ABS BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000004203878

INSPECTION PROCEDURE

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend

and loose connection (unit side and connector side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of ABS actuator and electric unit (control unit).

2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector termi-

nals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the ABS actuator and electric unit (control unit) branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to the

following.

• Models with ABS: 

BRC-41, "Wiring Diagram - Coupe"

 or 

BRC-46, "Wiring Diagram - Sedan"

• Models with TCS: 

BRC-109, "Wiring Diagram - Coupe"

 or 

BRC-115, "Wiring Diagram - Sedan"

• Models with VDC: 

BRC-207, "Wiring Diagram - Coupe"

 or 

BRC-215, "Wiring Diagram - Sedan"

Is the inspection result normal?

YES (Present error)>>Replace the ABS actuator and electric unit (control unit). Refer to the following.

• Models with ABS: 

BRC-66, "Exploded View"

• Models with TCS: 

BRC-137, "Exploded View"

• Models with VDC: 

BRC-239, "Exploded View"

YES (Past error)>>Error was detected in the ABS actuator and electric unit (control unit) branch line.

NO

>> Repair the power supply and the ground circuit.

ABS actuator and electric unit (control unit) harness connector

Resistance (

Ω)

Connector No.

Terminal No.

E26

26

15

Approx. 54 – 66

LAN-44

< COMPONENT DIAGNOSIS >

[CAN]

TCM BRANCH LINE CIRCUIT

TCM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000004203879

INSPECTION PROCEDURE

1.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-

nector side).

-

TCM

-

Harness connector F1

-

Harness connector E3

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of TCM.

2. Check the resistance between the TCM harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the TCM branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the TCM. Refer to the following.

• QR25DE models: 

TM-380, "Wiring Diagram - CVT CONTROL SYSTEM - Coupe"

 or 

TM-389, "Wiring Dia-

gram - CVT CONTROL SYSTEM - Sedan"

• VQ35DE models: 

TM-202, "Wiring Diagram—CVT CONTROL SYSTEM—Coupe"

 or 

TM-211, "Wiring Dia-

gram—CVT CONTROL SYSTEM—Sedan"

Is the inspection result normal?

YES (Present error)>>Replace the TCM. Refer to the following.

• QR25DE models: 

TM-430, "Exploded View"

• VQ35DE models: 

TM-254, "Exploded View"

YES (Past error)>>Error was detected in the TCM branch line.

NO

>> Repair the power supply and the ground circuit.

TCM harness connector

Resistance (

Ω)

Connector No.

Terminal No.

F16

32

31

Approx. 54 – 66