Infiniti EX35. Manual - part 73

AV

STEERING ANGLE SENSOR SIGNAL CIRCUIT

AV-73

< COMPONENT DIAGNOSIS >

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C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

3.

Turn ignition switch ON.

4.

Check signal between camera control unit harness connector and ground.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering angle sensor.

(+)

(

−

)

Condition

Reference value

Camera control unit

Connector

Terminals

B50

23, 24

Ground

Turn the steering to the right

A: Sensor signal 1
B: Sensor signal 2

Turn the steering to the left

A: Sensor signal 1
B: Sensor signal 2

25

Ground

Turn the steering around the 
neutral position

A: Sensor signal 3
B: Sensor signal 1

SKIB3827E

SKIB3828E

SKIB3829E

AV-74

< COMPONENT DIAGNOSIS >

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STEERING SWITCH SIGNAL A CIRCUIT

STEERING SWITCH SIGNAL A CIRCUIT

Description

INFOID:0000000003508418

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000003508419

1.

CHECK STEERING SWITCH SIGNAL A CIRCUIT

1.

Disconnect AV control unit connector and spiral cable connector. 

2.

Check continuity between AV control unit harness connector and spiral cable harness connector.

3.

Check continuity between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SPIRAL CABLE

Check spiral cable. 
Is the inspection result normal?

YES

>> GO TO 3. 

NO

>> Replace spiral cable.

3.

CHECK AV CONTROL UNIT VOLTAGE

1.

Connect AV control unit connector and spiral cable connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to 

AV-75, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering switch.

AV control unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M81

6

M36

24

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M81

6

Not existed

(+)

(

−

)

Reference 

value

(Approx.)

AV control unit

AV control unit

Connector

Terminal

Connector

Terminal

M81

6

M81

15

3.3 V

AV

STEERING SWITCH SIGNAL A CIRCUIT

AV-75

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Component Inspection

INFOID:0000000003508420

Measure the resistance between the steering switch connector.

JSNIA0215GB

Steering switch

Steering switch

Condition

Resistance value

(

Ω

)

Connector

Terminals

Connector

Terminal

M303

14

M303

17

SOURCE switch ON

 0

MENU UP switch ON

120 – 122

MENU DOWN switch ON

318 – 324

15

VOL DOWN switch ON

0

VOL UP switch ON

120 – 122

AV-76

< COMPONENT DIAGNOSIS >

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STEERING SWITCH SIGNAL B CIRCUIT

STEERING SWITCH SIGNAL B CIRCUIT

Description

INFOID:0000000003508421

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000003508422

1.

CHECK STEERING SWITCH SIGNAL B CIRCUIT

1.

Disconnect AV control unit connector and spiral cable connector. 

2.

Check continuity between AV control unit harness connector and spiral cable harness connector.

3.

Check continuity between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SPIRAL CABLE

Check spiral cable. 
Is the inspection result normal?

YES

>> GO TO 3. 

NO

>> Replace spiral cable.

3.

CHECK AV CONTROL UNIT VOLTAGE

1.

Connect AV control unit connector and spiral cable connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to 

AV-77, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering switch.

AV control unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M81

16

M36

31

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M81

16

Not existed

(+)

(

−

)

Reference 

value

(Approx.)

AV control unit

AV control unit

Connector

Terminal

Connector

Terminal

M81

16

M81

15

3.3 V