Nissan Maxima Service and Repair Manual: Headlamp (LO) circuit

Nissan Maxima Service and Repair Manual / Driver controls / Exterior lighting system / DTC/circuit diagnosis / Headlamp (LO) circuit

Description

The IPDM E/R (intelligent power distribution module engine room) controls the headlamp low relay based on inputs from the BCM over the CAN communication lines. When the headlamp low relay is energized, power flows through fuses 51 and 52, located in the IPDM E/R. Power then flows to the front combination lamps to the headlamp low beam.

Component Function Check

1.CHECK HEADLAMP (LO) OPERATION

WITHOUT CONSULT

  1. Start IPDM E/R auto active test. Refer to PCS-11, "Diagnosis Description".
  2. Check that the headlamp is turned ON.

NOTE: HI/LO is repeated 1 second each when using the IPDM E/R auto active test.

CONSULT

  1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
  2. While operating the test item, check that the headlamp is turned ON.

LO : Headlamp ON
OFF : Headlamp OFF

Diagnosis Procedure

1.CHECK HEADLAMP (LO) FUSES

  1. Turn the ignition switch OFF.
  2. Check that the following fuses are not open

Nissan Maxima. CHECK HEADLAMP (LO) FUSES

2.CHECK HEADLAMP (LO) OUTPUT VOLTAGE

CONSULT

Nissan Maxima. CHECK HEADLAMP (LO) OUTPUT VOLTAGE

  1. Turn the ignition switch OFF.
  2. Disconnect the front combination lamp connector.
  3. Turn the ignition switch ON.
  4. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
  5. With EXTERNAL LAMPS ON, check the voltage between the combination lamp connector and ground.

Nissan Maxima. CHECK HEADLAMP (LO) OUTPUT VOLTAGE

3.CHECK HEADLAMP (LO) CIRCUIT FOR OPEN

Nissan Maxima. CHECK HEADLAMP (LO) CIRCUIT FOR OPEN

  1. Turn the ignition switch OFF.
  2. Disconnect IPDM E/R connector E200.
  3. Check continuity between the IPDM E/R harness connector (A) and the front combination lamp harness connector (B).

Nissan Maxima. CHECK HEADLAMP (LO) CIRCUIT FOR OPEN

4.CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT

Nissan Maxima. CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT

Check continuity between the front combination lamp harness connector terminal and ground.

Nissan Maxima. CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT

    Headlamp (HI) circuit
    Description The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on inputs from the BCM over the CAN communication lines. When the headlamp high ...

    Xenon headlamp
    Description OPERATION Refer to EXL-10, "Component Description". PRECAUTIONS FOR TROUBLE DIAGNOSIS Installation or removal of the connector must be done with the lighting switch OFF. When ...

    Other materials:

    Trunk room lamp circuit
    Description Controls the trunk room lamp (ground side) to turn the trunk room lamp ON and OFF. Component Function Check CAUTION: Before performing the diagnosis, check that the following is normal. Battery saver output/power supply Trunk room lamp bulb 1.CHECK TRUNK ROOM LAMP OPERATI ...

    Power supply and ground circuit
    POWER SUPPLY AND GROUND CIRCUIT AUDIO UNIT AUDIO UNIT : Diagnosis Procedure 1.CHECK FUSES Check that the following fuses are not blown. 2.POWER SUPPLY CIRCUIT CHECK Disconnect audio unit connector M133. Check voltage between the audio unit connector M133 and ground. 3.GROUND C ...

    P1740 select solenoid
    Description  The lock-up select solenoid valve controls lock-up clutch pressure or forward clutch pressure (reverse brake pressure).  When controlling lock-up clutch, the valve is turned OFF. When controlling forward clutch, it is turned ON. DTC Logic DTC DET ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0069