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

Nissan Maxima Service and Repair Manual / Driver controls / Exterior lighting system / DTC/circuit diagnosis / 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 relay is energized, power flows through fuses 48 and 49, located in the IPDM E/R. Power then flows to the front combination lamps to the headlamp high beam.

Component Function Check

1.CHECK HEADLAMP (HI) OPERATION

WITHOUT CONSULT

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

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 switches to the high beam.

HI : Headlamp switches to the high beam.
OFF : Headlamp OFF

Diagnosis Procedure

1.CHECK HEADLAMP (HI) FUSES

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

Nissan Maxima. CHECK HEADLAMP (HI) FUSES

2.CHECK HEADLAMP (HI) OUTPUT VOLTAGE

CONSULT ACTIVE TEST

Nissan Maxima. CHECK HEADLAMP (HI) 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 LAMP ON, check the voltage between the combination lamp connector and ground.

Nissan Maxima. CHECK HEADLAMP (HI) OUTPUT VOLTAGE

3.CHECK HEADLAMP (HI) CIRCUIT FOR OPEN

Nissan Maxima. CHECK HEADLAMP (HI) 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 (HI) CIRCUIT FOR OPEN

4.CHECK FRONT COMBINATION LAMP (HI) GROUND CIRCUIT

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

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

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

5.CHECK CONTINUITY BETWEEN FRONT COMBINATION LAMP RH (HI) AND DAYTIME LIGHT RELAY

Nissan Maxima. CHECK CONTINUITY BETWEEN FRONT COMBINATION LAMP RH (HI) AND DAYTIME LIGHT RELAY

  1. Disconnect daytime light relay connector.
  2. Check continuity between front combination lamp RH harness connector and daytime light relay harness connector.

6.CHECK DAYTIME LIGHT RELAY GROUND CIRCUIT

Check continuity between daytime light relay harness connector and ground.

Nissan Maxima. CHECK DAYTIME LIGHT RELAY GROUND CIRCUIT

7.CHECK DAYTIME LIGHT RELAY FUSE

  1. Turn the ignition switch OFF.
  2. Check that the following fuse is not open.

Nissan Maxima. CHECK DAYTIME LIGHT RELAY FUSE

8.CHECK DAYTIME LIGHT RELAY CIRCUIT FOR OPEN

  1. Disconnect IPDM E/R connector E18 and E201.
  2. Check continuity between the IPDM E/R harness connector and the daytime light relay harness connector.

Nissan Maxima. CHECK DAYTIME LIGHT RELAY CIRCUIT FOR OPEN

9.CHECK DAYTIME LIGHT RELAY

Check daytime light relay

Component Inspection

1. CHECK DAYTIME LIGHT RELAY

  1. Turn ignition switch OFF.
  2. Remove daytime light relay.
  3. Check the continuity between daytime light relay terminals under the following conditions.

Nissan Maxima. CHECK DAYTIME LIGHT RELAY

Nissan Maxima. CHECK DAYTIME LIGHT RELAY

    Power supply and ground circuit
    BCM (BODY CONTROL MODULE) BCM (BODY CONTROL MODULE) : Diagnosis Procedure 1. CHECK FUSE AND FUSIBLE LINK Check if the following BCM fuses or fusible link are blown. 2. CHECK POWER SUPPLY CIRCU ...

    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 r ...

    Other materials:

    Heater & cooling unit assembly
    Exploded View Wiring harness Mode door motor Upper floor connecting duct (LH) Air mix door motor (driver side) Heater core pipes cover Heater core In-cabin microfilter Filter cover Blower motor Intake door motor Blower unit Upper floor connecting duct (RH) Air mi ...

    Changing engine oil
    1. Park the vehicle on a level surface and apply the parking brake. 2. Start the engine and let it idle until it reaches operating temperature, then turn it off. 3. Remove the oil filler cap A by turning it counterclockwise. 4. Remove clips B from the under-engine protector. 5 ...

    ECM branch line circuit
    Diagnosis Procedure 1.CHECK CONNECTOR Turn the ignition switch OFF. Disconnect the battery cable from the negative terminal. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). - Models without automatic drive positione ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0099