Infiniti FX35 / FX45. Manual - part 775

TROUBLE DIAGNOSIS

LAN-77

< SERVICE INFORMATION >

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

N

O

P

-

Harness connector R1

-

Harness connector M31

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of LDW camera unit.

2.

Check the resistance between the LDW camera unit harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the LDW camera unit branch line. (Replace the room lamp harness if error is detected on

the shield line.)

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the LDW camera unit. Refer to 

DI-84, "Power Supply and

Ground Circuit Inspection"

.

OK or NG

OK

>> • Present error: Replace the LDW camera unit. Refer to 

DI-91, "Removal and Installation for LDW

Camera Unit"

.

• Past error: Error was detected in the LDW camera unit branch line.

NG

>> Repair the power supply and the ground circuit.

Steering Angle Sensor Branch Line Circuit

INFOID:0000000001328663

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).

OK or NG

OK

>> GO TO 2.

NG

>> 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.

OK or NG

OK

>> GO TO 3.

NG

>> 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-17, "Schematic"

.

OK or NG

OK

>> • Present error: Replace the steering angle sensor. Refer to 

BRC-56, "Removal and Installation"

.

• Past error: Error was detected in the steering angle sensor branch line.

LDW camera unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

R9

10

5

Approx. 54 – 66

Steering angle sensor harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M14

4

5

Approx. 54 – 66

LAN-78

< SERVICE INFORMATION >

[CAN]

TROUBLE DIAGNOSIS

NG

>> Repair the power supply and the ground circuit.

Unified Meter and A/C Amp. Branch Line Circuit

INFOID:0000000001328664

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 unified meter and A/C amp. for damage, bend and loose con-
nection (unit side and connector side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of unified meter and A/C amp.

2.

Check the resistance between the unified meter and A/C amp. harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the unified meter and A/C amp. branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the unified meter and A/C amp. Refer to 

DI-29, "Power Sup-

ply and Ground Circuit Inspection"

.

OK or NG

OK

>> • Present error: Replace the unified meter and A/C amp. Refer to 

DI-32, "Removal and Installa-

tion of Unified Meter and A/C Amp"

.

• Past error: Error was detected in the unified meter and A/C amp. branch line.

NG

>> Repair the power supply and the ground circuit.

ABS Actuator and Electric Unit (Control Unit) Branch Line Circuit

INFOID:0000000001328665

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).

OK or NG

OK

>> GO TO 2.

NG

>> 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.

OK or NG

Unified meter and A/C amp. harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

M55

1

11

Approx. 54 – 66

ABS actuator and electric unit (control unit) harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E56

11

15

Approx. 54 – 66

TROUBLE DIAGNOSIS

LAN-79

< SERVICE INFORMATION >

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

N

O

P

OK

>> GO TO 3.

NG

>> 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

BRC-17, "Schematic"

.

OK or NG

OK

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

BRC-54,

"Removal and Installation"

. 

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

NG

>> Repair the power supply and the ground circuit.

ICC Sensor Branch Line Circuit

INFOID:0000000001328666

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 ICC sensor for damage, bend and loose connection (unit side
and connector side).

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of ICC sensor.

2.

Check the resistance between the ICC sensor harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the ICC sensor branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

ACS-19, "Schematic"

.

OK or NG

OK

>> • Present error: Replace the ICC sensor. Refer to 

ACS-65, "ICC Sensor"

.

• Past error: Error was detected in the ICC sensor branch line.

NG

>> Repair the power supply and the ground circuit.

Driver Seat Control Unit Branch Line Circuit

INFOID:0000000001328667

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).

-

Driver seat control unit

-

Harness connector B151

-

Harness connector B8

OK or NG

OK

>> GO TO 2.

NG

>> Repair the terminal and connector.

ICC sensor harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E39

3

6

Approx. 54 – 66

LAN-80

< SERVICE INFORMATION >

[CAN]

TROUBLE DIAGNOSIS

2.

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect the connector of driver seat control unit.

2.

Check the resistance between the driver seat control unit harness connector terminals.

OK or NG

OK

>> GO TO 3.

NG

>> Repair the driver seat control unit branch line.

3.

CHECK POWER SUPPLY AND GROUND CIRCUIT

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

SE-18, "Schematic"

.

OK or NG

OK

>> • Present error: Replace the driver seat control unit. Refer to 

SE-16, "Component Parts and Har-

ness Connector Location"

.

• Past error: Error was detected in the driver seat control unit branch line.

NG

>> Repair the power supply and the ground circuit.

IPDM E/R Branch Line Circuit

INFOID:0000000001328668

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

-

Harness connector E205

-

Harness connector B5

OK or NG

OK

>> GO TO 2.

NG

>> 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.

OK or NG

OK

>> GO TO 3.

NG

>> 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 

PG-23, "IPDM E/R Power/Ground

Circuit Inspection"

.

OK or NG

OK

>> • Present error: Replace the IPDM E/R. Refer to 

PG-24, "Removal and Installation of IPDM E/R"

.

• Past error: Error was detected in the IPDM E/R branch line.

NG

>> Repair the power supply and the ground circuit.

Driver seat control unit harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

B152

14

15

Approx. 54 – 66

IPDM E/R harness connector

Resistance (

Ω

)

Connector No.

Terminal No.

E9

48

49

Approx. 108 – 132