Nissan Maxima Service and Repair Manual: Communication signal circuit

SATELLITE RADIO TUNER

SATELLITE RADIO TUNER : Description

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

SATELLITE RADIO TUNER : Diagnosis Procedure

1.CHECK HARNESS - 1

Nissan Maxima. CHECK HARNESS - 1

  1. Turn ignition switch OFF.
  2. Disconnect satellite radio tuner (factory installed) connector B111 and AV control unit connector M153.
  3. Check continuity between satellite radio tuner (factory installed) harness connector B111 (A) terminal 28 and AV control unit harness connector M153 (B) terminal 28.
  4. Check continuity between satellite radio tuner (factory installed) harness connector B111 (A) terminal 28 and ground.

Nissan Maxima. CHECK HARNESS - 1

Nissan Maxima. CHECK HARNESS - 1

2.CHECK HARNESS - 2

Nissan Maxima. CHECK HARNESS - 2

  1. Check continuity between satellite radio tuner (factory installed) harness connector B111 (A) terminal 29 and AV control unit harness connector M153 (B) terminal 29.
  2. Check continuity between satellite radio tuner (factory installed) harness connector B111 (A) terminal 29 and ground.

3.CHECK HARNESS - 3

Nissan Maxima. CHECK HARNESS - 3

  1. Check continuity between satellite radio tuner (factory installed) harness connector B111 (A) terminal 30 and AV control unit harness connector M153 (B) terminal 30.
  2. Check continuity between satellite radio tuner (factory installed) harness connector B111 (A) terminal 30 and ground.

Nissan Maxima. CHECK HARNESS - 3

Nissan Maxima. CHECK HARNESS - 3

4.CHECK REQ1 SIGNAL

Nissan Maxima. CHECK REQ1 SIGNAL

  1. Connect satellite radio tuner (factory installed) connector and AV control unit connector.
  2. Turn ignition switch to ACC.
  3. Check signal between satellite radio tuner (factory installed) harness connector B111 terminal 28 and ground with CONSULT or oscilloscope

Nissan Maxima. CHECK REQ1 SIGNAL

5.CHECK TXD SIGNAL

Nissan Maxima. CHECK TXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness connector B111 terminal 29 and ground with CONSULT or oscilloscope

Nissan Maxima. CHECK TXD SIGNAL

6.CHECK RXD SIGNAL

Nissan Maxima. CHECK RXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness connector B111 terminal 30 and ground with CONSULT or oscilloscope.

Nissan Maxima. CHECK RXD SIGNAL

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

    Sound signal circuit
    SATELLITE RADIO TUNER SATELLITE RADIO TUNER : Description Left and right channel audio signals are supplied from the satellite radio tuner to the AV control unit through the sound signal circuit ...

    Other materials:

    Front door switch (driver side)
    Description Detects front door LH open/close condition. Component Function Check 1. CHECK FUNCTION Select "DOOR SW-FL" in "DATA MONITOR" mode with CONSULT. Check the front door switch signal under the following conditions Diagnosis Procedure 1. CHECK FRONT DOOR SWITCH LH CIRCUIT ...

    Cooling fan control
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *1: The ECM determines the start signal status by the signals of engine speed and battery voltage. *2: This signal is sent to ECM via the CAN communication line. SYSTEM DESCRIPTION The ECM controls the cooling fan correspon ...

    Seat belt warning light
    Both the driver's and passenger's front seats are equipped with a seat belt warning light. The warning light, located on the instrument panel, will show the status of the driver and passenger seat belt. NOTE: The front passenger seat belt warning light will not light up if the seat is not ...

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