Nissan Qashqai (2007-2010). Manual - part 1692

LAN

CAN COMMUNICATION CIRCUIT

LAN-793

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 52)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Is the measurement value within the specification?

YES

>> GO TO 5.

NO

>> Replace the ECM and/or the IPDM E/R.

5.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with
customer)” are reproduced. 

Inspection result

Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is

detected.

6.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.
1.

Turn the ignition switch OFF.

2.

Disconnect the battery cable from the negative terminal.

3.

Disconnect one of the unit connectors of CAN communication system.
NOTE:
ECM and IPDM E/R have a termination circuit. Check other units first.

4.

Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced. 
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms. 

Inspection result

Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.

IPDM E/R

Resistance (

Ω

)

Terminal No.

28

29

Approx. 108 – 132

LAN-794

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 53)]

MAIN LINE BETWEEN ABS AND BCM CIRCUIT

COMPONENT DIAGNOSIS

MAIN LINE BETWEEN ABS AND BCM CIRCUIT

Diagnosis Procedure

INFOID:0000000001057019

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 E105

-

Harness connector M77

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the following harness connectors.

-

ABS actuator and electric unit (control unit)

-

Harness connectors E105 and M77

2.

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

-

Models with ESP

-

Models with ABS

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the main line between the ABS actuator and electric unit (control unit) harness connector

and the harness connector E105.

3.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.

Disconnect the connector of BCM.

2.

Check the continuity between the harness connector and the BCM 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 ABS actuator and electric unit (control

unit) and the BCM. 

ABS actuator and electric unit (control unit)

harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

E36

26

E105

52

Existed

15

51

Existed

ABS actuator and electric unit (control unit)

harness connector

Harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

E34

26

E105

52

Existed

15

51

Existed

Harness connector

BCM harness connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M77

52

M65

19

Existed

51

20

Existed

LAN

MAIN LINE BETWEEN ABS AND BCM CIRCUIT

LAN-795

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 53)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

NO

>> Repair the main line between the harness connector M77 and the BCM.

LAN-796

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 53)]

MAIN LINE BETWEEN BCM AND DLC CIRCUIT

MAIN LINE BETWEEN BCM AND DLC CIRCUIT

Diagnosis Procedure

INFOID:0000000001057022

INSPECTION PROCEDURE

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

-

BCM

4.

Check the continuity between the BCM harness connector and the data link 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 BCM and the data link connector. 
NO

>> Repair the main line between the BCM and the data link connector.

BCM harness connector

Data link connector

Continuity

Connector No.

Terminal No.

Connector No.

Terminal No.

M65

19

M4

6

Existed

20

14

Existed