Infiniti G37 Coupe. Manual - part 175

 

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Infiniti G37 Coupe. Manual - part 175

 

 

AV

STEERING ANGLE SENSOR SIGNAL 1, 2 CIRCUIT

AV-453

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace Steering angle sensor.

Terminal

Condition

Reference value

23, 24 - Ground

Ignition 

switch 

ON

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

SKIB3827E

SKIB3828E

AV-454

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

STEERING ANGLE SENSOR SIGNAL 3 CIRCUIT

STEERING ANGLE SENSOR SIGNAL 3 CIRCUIT

Description

INFOID:0000000001558891

• Steering angle sensor signal 1, 2 detects the turning direction and quantity of the steering and transmits it to

the camera control unit.

• Steering angle sensor signal 3 detects the neutral position of the steering and transmits it to the camera con-

trol unit.

• Camera control unit performs the correction of neutral position with sensor signal 1, 2, 3 and vehicle speed

signal.

Diagnosis Procedure

INFOID:0000000001558892

1.

CHECK CONTINUITY STEERING ANGLE SENSOR SIGNAL 3 CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect camera control unit connector and steering angle sensor connector.

3.

Check continuity between camera control unit harness connector terminal 25 and steering angle sensor
harness connector terminal 5.

4.

Check continuity between camera control unit harness connector terminal 25 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SENSOR SIGNAL 3

1.

Connect camera control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between camera control unit harness connector terminal 25 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace camera control unit.

3.

CHECK SENSOR SIGNAL 3

1.

Connect steering angle sensor connector.

2.

Check signal between camera control unit harness connector terminal 25 and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace Steering angle sensor.

25 - 5

: Continuity should exist.

5 - Ground

: Continuity should not exist.

25 - Ground

: Approx. 5 V

Terminal

Condition

Reference value

25 - Ground

Ignition 

switch 

ON

Turn the steering around the neu-
tral position

A: Sensor signal 3
B: Sensor signal 1

SKIB3829E

AV

STEERING SWITCH SIGNAL A CIRCUIT

AV-455

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

STEERING SWITCH SIGNAL A CIRCUIT

Description

INFOID:0000000001558893

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000001558894

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 terminal 6 and spiral cable harness connec-
tor terminal 24.

3.

Check continuity between AV control unit harness connector terminals 6 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 terminals 6 and 15.

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-455, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering switch.

Component Inspection

INFOID:0000000001558895

Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.

6 - 24

: Continuity should exist.

6 - Ground

: Continuity should not exist.

6 - 15

: Approx. 5 V

AV-456

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

STEERING SWITCH SIGNAL A CIRCUIT

Standard

Between terminals 14 and 
17

ENTER switch ON

: 2003 – 2043 

 switch ON

: 716 – 730 

MENU DOWN switch ON

: 318 – 324 

MENU UP switch ON

: 120 – 122 

SOURCE switch ON

: 0 

Between terminals 15 and 
17

 switch ON

: 716 – 730 

 switch ON

: 318 – 324 

VOL UP switch ON

: 120 – 122 

VOL DOWN switch ON

: 0 

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