Nissan Qashqai (2007-2010). Manual - part 1769

LAN

DLC BRANCH LINE CIRCUIT

LAN-1101

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 75)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

DLC BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000001058092

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 data link connector for damage, bend and loose connection
(connector side and harness side).

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

Check the resistance between the data link connector terminals.

Is the measurement value within the specification?

YES (Present error)>>Check the CAN system type decision again.
YES (Past error)>>Error was detected in the data link connector branch line circuit.
NO

>> Repair the data link connector branch line.

Data link connector

Resistance (

Ω

)

Connector No.

Terminal No.

M4

6

14

Approx. 54 – 66

LAN-1102

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 75)]

EPS BRANCH LINE CIRCUIT

EPS BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000001058093

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 EPS 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 EPS control unit.

2.

Check the resistance between the EPS control unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the EPS control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the EPS control unit. Refer to 

STC-8, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES (Present error)>>Replace the EPS control unit. Refer to 

ST-10, "Exploded View"

.

YES (Past error)>>Error was detected in the EPS control unit branch line.
NO

>> Repair the power supply and the ground circuit.

EPS control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M37

8

6

Approx. 54 – 66

LAN

I-KEY BRANCH LINE CIRCUIT

LAN-1103

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 75)]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

I-KEY BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000001058094

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 Intelligent Key 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 Intelligent Key unit.

2.

Check the resistance between the Intelligent Key unit harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the Intelligent Key unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the Intelligent Key unit. Refer to 

DLK-71, "INTELLIGENT

KEY UNIT : Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the Intelligent Key unit. Refer to 

SEC-11, "Component Parts Location"

.

YES (Past error)>>Error was detected in the Intelligent Key unit branch line.
NO

>> Repair the power supply and the ground circuit.

Intelligent Key unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M40

2

3

Approx. 54 – 66

LAN-1104

< COMPONENT DIAGNOSIS >

[CAN SYSTEM (TYPE 75)]

IPDM-E BRANCH LINE CIRCUIT

IPDM-E BRANCH LINE CIRCUIT

Diagnosis Procedure

INFOID:0000000001058096

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).

-

IPDM E/R connector

-

Harness connector E105

-

Harness connector M77

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 IPDM E/R.

2.

Check the resistance between the IPDM E/R harness connector terminals.

Is the measurement value within the specification?

YES

>> GO TO 3.

NO

>> Repair the IPDM E/R branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the IPDM E/R. Refer to 

PCS-18, "Diagnosis Procedure"

.

Is the inspection result normal?

YES (Present error)>>Replace the IPDM E/R. Refer to 

PCS-32, "Exploded View"

.

YES (Past error)>>Error was detected in the IPDM E/R branch line.
NO

>> Repair the power supply and the ground circuit.

IPDM E/R harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E12

28

29

Approx. 108 – 132