Nissan Maxima Service and Repair Manual: DTC/circuit diagnosis

MAIN LINE BETWEEN DLC AND HVAC CIRCUIT

Diagnosis Procedure

1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

  1. Turn the ignition switch OFF.
  2. Disconnect the battery cable from the negative terminal.
  3. Disconnect the following harness connectors.
    • ECM
    • A/C auto amp.
  4. Check the continuity between the data link connector and the A/C auto amp. harness connector.

    CAN communication circuit
    Diagnosis Procedure 1.CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect all the unit connectors on CAN communication syste ...

    Main line between HVAC and A-bag circuit
    Diagnosis Procedure 1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT) Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Disconnect the following harness connector ...

    Other materials:

    IPDM E/R (intelligent power distribution module engine room)
    Reference Value VALUES ON THE DIAGNOSIS TOOL TERMINAL LAYOUT Fail Safe CAN COMMUNICATION CONTROL When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control. If No ...

    Front fog lamp system
    Wiring Diagram ...

    P0850 PNP switch
    Description When the selector lever position is P or N, park/neutral position (PNP) signal from the TCM is sent to ECM. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.INSPECTION START 2.PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perfo ...

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    Nissan Maxima Service and Repair Manual

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