Nissan Quest E52. Instruction — part 127

AV

CONTROL SIGNAL CIRCUIT

AV-387

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CONTROL SIGNAL CIRCUIT

Description

INFOID:0000000009652202

TEL adapter unit identifies the vehicle model according to the control signal and performs the control.

Diagnosis Procedure

INFOID:0000000009652203

1.

CHECK CONTINUITY CONTROL SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TEL adapter unit connector.

3.

Check continuity between TEL adapter unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace TEL adapter unit. Refer to

AV-420, "Removal and Installation"

.

NO

>> Repair harness or connector.

TEL adapter unit

Ground

Standard

Reference value

(Approx.)

Connector

Terminals

M138

20

3.1 V or less

0 V

27

AV-388

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STEERING SWITCH SIGNAL A CIRCUIT

STEERING SWITCH SIGNAL A CIRCUIT

Description

INFOID:0000000009652204

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000009652205

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. Refer to

SR-15, "Removal and Installation"

.

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. Refer to

AV-404, "Removal and Installation"

.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to

AV-388, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering wheel. Refer to

ST-12, "Removal and Installation"

.

Component Inspection

INFOID:0000000009652206

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

AV control unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M171

6

M33

24

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M171

6

Not existed

Probe

Standard

Voltage

(Approx.)

(+)

(

−

)

AV control unit

Connector

Terminal

Connector

Terminal

M171

6

M171

15

0 - 3.3 V

3.3 V

AV

STEERING SWITCH SIGNAL A CIRCUIT

AV-389

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Standard

Between terminals 14 and 17

switch

ON

: 708 – 737

Ω

MENU DOWN switch ON

: 314 – 327

Ω

MENU UP switch ON

: 118 – 123

Ω

SOURCE switch ON

: Less than 1

Ω

Between terminals 15 and 17

switch ON

: 314 – 327

Ω

VOL UP switch ON

: 118 – 123

Ω

VOL DOWN switch ON

: Less than 1

Ω

JSNIA0216GB

AV-390

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STEERING SWITCH SIGNAL B CIRCUIT

STEERING SWITCH SIGNAL B CIRCUIT

Description

INFOID:0000000009652207

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000009652208

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. Refer to

SR-15, "Removal and Installation"

.

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. Refer to

AV-404, "Removal and Installation"

.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to

AV-390, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering wheel. Refer to

ST-12, "Removal and Installation"

.

Component Inspection

INFOID:0000000009652209

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

AV control unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M171

16

M33

31

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M171

16

Not existed

Probe

Standard

Voltage

(Approx.)

(+)

(

−

)

AV control unit

Connector

Terminal

Connector

Terminal

M171

16

M171

15

0 - 3.3 V

3.3 V