Nissan Pathfinder. Manual - part 803

LAN

MAIN LINE BETWEEN DLC AND ADP CIRCUIT

LAN-165

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

C

D

E

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MAIN LINE BETWEEN DLC AND ADP CIRCUIT

Diagnosis Procedure

INFOID:0000000009175056

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 M40

-

Harness connector B69

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 M40 and B69.

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

-

Without around view monitor

-

With around view monitor

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the main line between the data link connector and the harness connector M40.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the harness connectors B54 and B200.

2. Check the continuity between the harness connectors

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 driver seat

control unit. 

NO

>> Repair the main line between the harness connectors B69 and B54.

Data link connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M22

6

M40

89A

Existed

14

90A

Existed

Data link connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M22

13

M40

89A

Existed

12

90A

Existed

Harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

B69

89A

B54

2

Existed

90A

1

Existed

LAN-166

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

MAIN LINE BETWEEN ADP AND PWBD CIRCUIT

MAIN LINE BETWEEN ADP AND PWBD CIRCUIT

Diagnosis Procedure

INFOID:0000000009175057

1.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect the following harness connectors.

-

ECM (Models without around view monitor)

-

CAN gateway (Models with around view monitor)

-

Harness connector B54 and B200

-

Automatic back door control module

4. Check the continuity between the harness connector and the automatic back door control module 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 driver seat control unit and the automatic

back door control module. 

NO

>> Repair the main line between the harness connector B54 and the automatic back door control

module.

Harness connector

Automatic back door control module

harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

B54

1

B55

24

Existed

2

12

Existed

LAN

MAIN LINE BETWEEN DLC AND CGW CIRCUIT

LAN-167

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

MAIN LINE BETWEEN DLC AND CGW CIRCUIT

Diagnosis Procedure

INFOID:0000000009175058

1.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect the following harness connectors.

-

ECM

-

CAN gateway

4. Check the continuity between the data link connector and the CAN gateway 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 CAN gate-

way. 

NO

>> Repair the main line between the data link connector and the CAN gateway.

Data link connector

CAN gateway harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M22

6

M5

1

Existed

14

7

Existed

LAN-168

< DTC/CIRCUIT DIAGNOSIS >

[CAN SYSTEM (TYPE 4)]

ECM BRANCH LINE CIRCUIT

ECM BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000009175059

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 ECM 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 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 

EC-173, "Diagnosis Procedure"

.

Is the inspection result normal?

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

EC-466, "Removal and Installation"

.

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.

E16

114

113

Approx. 108 – 132