Nissan Altima 2007-2012 Service Manual: Steering switch (coupe)

Description

When one of the steering wheel audio control switches is pushed, the resistance in the steering switch circuit changes depending on which button is pushed.

Diagnosis Procedure

WITH BLUETOOTH

1.CHECK HARNESS

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit connector B55 and spiral cable connector M30.

3. Check continuity between Bluetooth control unit connector B55 (A) terminals and spiral cable connector M30 (B) terminals.

4. Check continuity between Bluetooth control unit B55 (A) and ground.

Are the continuity test results as specified? YES >> GO TO 2

NO >> Repair harness.

2.CHECK HARNESS

1. Disconnect audio unit connector.

2. Check continuity between audio unit connector M43 (A) terminals and Bluetooth control unit connector B55 (B) terminals.

Are the continuity test results as specified? YES >> GO TO 3

NO >> Repair harness.

3.SPIRAL CABLE CHECK

1. Disconnect spiral cable connector M88.

2. Check continuity between spiral cable harness connector M30 and M88.

Are the continuity test results as specified? YES >> GO TO 4

NO >> Replace spiral cable. Refer to SR-8, "Removal and Installation".

4.CHECK STEERING SWITCH

Check steering switch. Refer to AV-143, "Component Inspection".

Does the steering switch pass inspection? YES >> Replace Bluetooth control unit. Refer to AV-235, "Removal and Installation - Coupe" NO >> Replace steering switch. Refer to AV-225, "Removal and Installation".

WITHOUT BLUETOOTH

1.CHECK STEERING SWITCH

Check steering switch. Refer to AV-143, "Component Inspection".

Does the steering switch pass inspection? YES >> GO TO 2

NO >> Replace steering switch. Refer to AV-225, "Removal and Installation".

2.CHECK HARNESS

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M43 and spiral cable connector M30.

3. Check continuity between spiral cable harness connector M30 (B) and audio unit harness connector M43 (A).

4. Check continuity between audio unit connector M43 (A) and ground.

Are the continuity test results as specified? YES >> GO TO 3

NO >> Repair harness.

3.SPIRAL CABLE CHECK

1. Disconnect spiral cable connector M88.

2. Check continuity between spiral cable harness connector M30 and M88.

Are the continuity test results as specified? YES >> Inspection End.

NO >> Replace spiral cable. Refer to SR-8, "Removal and Installation".

Component Inspection

WITH BLUETOOTH

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

Standard

WITHOUT BLUETOOTH

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

Standard

    AMP on signal circuit
    Description When the audio system is turned on, a voltage signal is supplied from the audio unit to the BOSE speaker amp. When this signal is received, the BOSE speaker amp. will turn on. Diagnos ...

    Steering switch (sedan)
    Description When one of the steering wheel audio control switches is pushed, the resistance in steering switch circuit changes depending on which button is pushed. Diagnosis Procedure WITH BLUE ...

    Other materials:

    Precaution
    Supplemental Restraint System (SRS) "AIR B AG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front ...

    P1551, P1552 battery current sensor
    Description The power generation voltage variable control enables fuel consumption to be decreased by reducing the engine load which is caused by the power generation of the generator. The battery current sensor is installed to the battery cable at the negative terminal. The sensor measures t ...

    Audio unit (sedan)
    Reference Value TERMINAL LAYOUT PHYSICAL VALUES - WITH BLUETOOTH PHYSICAL VALUES - WITHOUT BLUETOOTH Wiring Diagram - Sedan ...