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"

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    Diagnosis and repair workflow
    Work Flow OVERALL SEQUENCE DETAILED FLOW 1. GET INFORMATION FOR SYMPTOM Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). 2. CHECK DTC Check DTC. Perform the following procedure if DTC is di ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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