Nissan Altima 2007-2012 Service Manual: Satellite radio tuner

Description

Communication signals are exchanged between the audio unit and satellite radio tuner using the communication circuits.

Diagnosis Procedure

1.CHECK HARNESS - 1

. Turn ignition switch OFF.

2. Disconnect satellite radio tuner (factory installed) connector B57 and audio unit connector M45.

3. Check continuity between satellite radio tuner (factory installed) harness connector B57 (A) terminal 28 and audio unit harness connector M45 (B) terminal 38.

4. Check continuity between satellite radio tuner (factory installed) harness connector B57 (A) terminal 28 and ground.

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

NO >> Repair harness or connector.

2.CHECK HARNESS - 2

1. Check continuity between satellite radio tuner (factory installed) harness connector B57 (A) terminal 29 and audio unit harness connector M45 (B) terminal 39.

2. Check continuity between satellite radio tuner (factory installed) harness connector B57 (A) terminal 29 and ground.

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

NO >> Repair harness or connector.

3.CHECK HARNESS - 3

1. Check continuity between satellite radio tuner (factory installed) harness connector B57 (A) terminal 30 and audio unit harness connector M45 (B) terminal 40.

2. Check continuity between satellite radio tuner (factory installed) harness connector B57 (A) terminal 30 and ground.

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

NO >> Repair harness or connector.

4.CHECK REQ1 SIGNAL

1. Connect satellite radio tuner (factory installed) connector and audio unit connector.

2. Turn ignition switch to ACC

3. Check signal between satellite radio tuner (factory installed) harness connector B57 terminal 28 and ground with CONSULT-III or oscilloscope.

Are voltage readings as specified? YES >> GO TO 5

NO >> Replace audio unit. Refer to AV-215, "Removal and Installation".

5.CHECK TXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness connector B57 terminal 29 and ground with CONSULT-III or oscilloscope.

Are the voltage readings as specified? YES >> GO TO 6

NO >> Replace satellite radio tuner. Refer to AV-223, "Removal and Installation - Coupe".

6.CHECK RXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness connector B57 terminal 30 and ground with CONSULT-III or oscilloscope.

Are the voltage readings as specified? YES >> Replace satellite radio tuner. Refer to AV-223, "Removal and Installation - Coupe".

NO >> Replace audio unit. Refer to AV-215, "Removal and Installation".

    Communication signal circuit (sedan) satellite radio tuner
     Description Communication signals are exchanged between the audio unit and satellite radio tuner using the communication circuits.  Diagnosis Procedure 1.CHECK HARNESS - 1 1. Turn ig ...

    Other materials:

    P2119 electric throttle control actuator
    Description Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle control motor is operated by the ECM and it opens and closes the throttle valve. The throttle position sensor detects the throttle valve position, and the openi ...

    Ecu diagnosis
    TCM Reference Value VALUES ON THE DIAGNOSIS TOOL * Means CVT fluid temperature. Actual oil temperature °C (°F) cannot be checked unless a numeric value is converted. Refer to TM-237, "ATFTEMP COUNT Conversion Table". TERMINAL LAYOUT PHYSICAL VALUES *1: A circuit t ...

    Rear LH
    Description Door glass moves UP/DOWN by receiving the signal from main power window and door lock/unlock switch or rear power window switch LH.  Component Function Check 1. CHECK REAR POWER WINDOW MOTOR LH CIRCUIT Does rear power window motor LH operate with main power window and door ...