Nissan Maxima Service and Repair Manual: 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
- Start IPDM E/R auto active test. Refer to PCS-11, "Diagnosis Description".
- 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
- Select "EXTERNAL LAMPS" of IPDM E/R active test item.
- 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
- Turn the ignition switch OFF.
- Check that the following fuses are not open
2.CHECK HEADLAMP (LO) OUTPUT VOLTAGE
CONSULT
- Turn the ignition switch OFF.
- Disconnect the front combination lamp connector.
- Turn the ignition switch ON.
- Select "EXTERNAL LAMPS" of IPDM E/R active test item.
- With EXTERNAL LAMPS ON, check the voltage between the combination lamp connector and ground.
3.CHECK HEADLAMP (LO) CIRCUIT FOR OPEN
- Turn the ignition switch OFF.
- Disconnect IPDM E/R connector E200.
- Check continuity between the IPDM E/R harness connector (A) and the front combination lamp harness connector (B).
4.CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT
Check continuity between the front combination lamp harness connector terminal and ground.
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:
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW\
1.CHECK SYMPTOM
Check the malfunction symptoms by performing the following items.
Interview the customer to obtain the malfunction information
(conditions and environment when the malfunction occurred).
Check the symptom.
2.SELF-DIAGNOSIS ( ...
Illumination control system
System Diagram
System Description
The illumination lamps operation is dependent upon the position of the
lighting switch (combination switch).
When the lighting switch is placed in
the 1ST or 2ND position (or if the auto light system is activated) the BCM
(body control module) receives in ...
Horn function
Symptom Table
HAZARD AND HORN REMINDER FUNCTION MALFUNCTION
NOTE:
Before performing the diagnosis in the following table, check
"Work flow". Refer to DLK-9, "Work Flow".
If the following symptoms are detected, check systems shown in
the "Diagnosis/service procedure" column
...
Nissan Maxima Owners Manual
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Nissan Maxima Service and Repair Manual
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