Nissan Maxima Service and Repair Manual: HVAC branch line circuit

Diagnosis Procedure

1.CHECK CONNECTOR

  1. Turn the ignition switch OFF.
  2. Disconnect the battery cable from the negative terminal.
  3. Check the terminals and connectors of the A/C auto amp. for damage, bend and loose connection (unit side and connector side).

2.CHECK HARNESS FOR OPEN CIRCUIT

  1. Disconnect the connector of A/C auto amp.
  2. Check the resistance between the A/C auto amp. harness connector terminals.

3.CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.

  • Models with color display: HAC-60, "A/C AUTO AMP. : Diagnosis Procedure"
  • Models with monochrome display: HAC-165, "A/C AUTO AMP. : Diagnosis Procedure"
    M&A branch line circuit
    Diagnosis Procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the combination meter for ...

    STRG branch line circuit
    Diagnosis Procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the steering angle sensor ...

    Other materials:

    Diagnosis system (BCM)
    COMMON ITEM COMMON ITEM : CONSULT Function (BCM - COMMON ITEM) APPLICATION ITEM CONSULT performs the following functions via CAN communication with BCM. SYSTEM APPLICATION BCM can perform the following functions. RETAINED PWR RETAINED PWR : CONSULT Function (BCM - RETAINED PWR) DATA ...

    Diagnosis system (bluetooth control unit)
    Diagnosis Description The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically every ignition cycle during control unit initialization. The second diagnostic check is performed by the technician using the steering wheel audio control switches ...

    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. Diagnosis Procedure 1.CHECK STEERING SWITCH RESISTANCE Disconnect steering switch connector M88. ...

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    Nissan Maxima Service and Repair Manual

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