Nissan Altima L32. Manual - part 876

LAN

CAN COMMUNICATION SYSTEM

LAN-33

< COMPONENT DIAGNOSIS >

[CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

ABMIA0465GB

LAN-34

< COMPONENT DIAGNOSIS >

[CAN]

MALFUNCTION AREA CHART

MALFUNCTION AREA CHART

Main Line

INFOID:0000000004203867

Branch Line

INFOID:0000000004203868

Short Circuit

INFOID:0000000004203869

Malfunction Area

Reference

Main line between data link connector and ABS actuator and 
electric unit (control unit)

LAN-35, "Diagnosis Procedure"

Malfunction Area

Reference

ECM branch line circuit 

LAN-36, "Diagnosis Procedure"

Air bag diagnosis sensor unit branch line circuit 

LAN-37, "Diagnosis Procedure"

AV control unit branch line circuit 

LAN-38, "Diagnosis Procedure"

BCM branch line circuit 

LAN-39, "Diagnosis Procedure"

Data link connector branch line circuit 

LAN-40, "Diagnosis Procedure"

Combination meter branch line circuit

LAN-41, "Diagnosis Procedure"

Steering angle sensor branch line circuit 

LAN-42, "Diagnosis Procedure"

ABS actuator and electric unit (control unit) branch line circuit 

LAN-43, "Diagnosis Procedure"

TCM branch line circuit 

LAN-44, "Diagnosis Procedure"

IPDM E/R branch line circuit 

LAN-45, "Diagnosis Procedure"

Malfunction Area

Reference

CAN communication circuit

LAN-46, "Diagnosis Procedure"

LAN

MAIN LINE BETWEEN DLC AND ABS CIRCUIT

LAN-35

< COMPONENT DIAGNOSIS >

[CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

MAIN LINE BETWEEN DLC AND ABS CIRCUIT

Diagnosis Procedure

INFOID:0000000004203870

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 (connector side

and harness side).

-

Harness connector M1

-

Harness connector E30

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the harness connectors M1 and E30.

2. Check the continuity between the data link connector and the harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the main line between the data link connector and the harness connector M1.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

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

2. Check the continuity between the harness connector and the ABS actuator and electric unit (control unit)

harness connector.

Is the inspection result normal?

YES (Present error)>>Check CAN system type decision again.

YES (Past error)>>Error was detected in the main line between the data link connector and the ABS actuator

and electric unit (control unit). 

NO

>> Repair the main line between the harness connector E30 and the ABS actuator and electric unit

(control unit).

Data link connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M22

6

M1

15G

Existed

14

8G

Existed

Harness connector

ABS actuator and electric unit (control unit)

harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

E30

15G

E26

26

Existed

8G

15

Existed

LAN-36

< COMPONENT DIAGNOSIS >

[CAN]

ECM BRANCH LINE CIRCUIT

ECM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000004203871

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).

-

ECM

-

Harness connector E30

-

Harness connector M1

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 ECM.

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

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the ECM branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

• QR engine models for California: 

EC-144, "Diagnosis Procedure"

• QR engine models expect for California: 

EC-673, "Diagnosis Procedure"

• VQ engine models: 

EC-1175, "Diagnosis Procedure"

Is the inspection result normal?

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

• QR engine models for California: 

EC-27, "ADDITIONAL SERVICE WHEN REPLACING CON-

TROL UNIT : Special Repair Requirement"

• QR engine models except for California: 

EC-563, "ADDITIONAL SERVICE WHEN REPLACING

CONTROL UNIT : Special Repair Requirement"

• VQ engine models: 

EC-1051, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT :

Special Repair Requirement"

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

NO

>> Repair the power supply and the ground circuit.

ECM harness connector

Resistance (

Ω)

Connector No.

Terminal No.

E10

98

97

Approx. 108 – 132