Nissan Maxima Service and Repair Manual: Auto light system

System Diagram

Nissan Maxima. System Diagram

System Description

  • BCM (Body Control Module) controls auto light operation according to signals from optical sensor, lighting switch and ignition switch.
  • IPDM E/R (Intelligent Power Distribution Module Engine Room) operates parking, license plate, tail, front fog lamps and headlamps according to CAN communication signals from BCM.
  • Optical sensor detects ambient brightness of 800 to 2,500 lux, converts light (lux) to voltage, and then sends the optical sensor signal to BCM.

OUTLINE

The auto light control system has an optical sensor that detects outside brightness.

When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking, license plate, tail, front fog lamps and headlamps in accordance with the ambient light. Sensitivity can be adjusted in four steps.

For the details of the setting, refer

Component Parts Location

Nissan Maxima. Component Parts Location

  1. IPDM E/R E17, E18, E200
  2. BCM M16, M17, M18, M19, M21 (view with combination meter removed)
  3. Combination switch (lighting and turn signal switch) M28
  4. Optical sensor M66

Component Desription

AUTO LIGHT OPERATION

Applicable lamps

  • Low beam headlamp
  • Parking, license plate and tail lamps
  • High beam headlamp (with the lighting switch in HIGH BEAM position)
  • Front fog lamp (with the lighting switch in front fog lamp ON position)

When the lighting switch is in AUTO position with the ignition switch in ON position, BCM detects the AUTO LIGHT (ON) by BCM combination switch (lighting and turn signal switch) reading function. BCM automatically turns ON/OFF the applicable lamps according to ambient brightness. NOTE: Timing for when lamps turn ON/OFF can be changed by the function setting of CONSULT.

    Daytime running light system
    System Diagram System Description The headlamp system for Canada vehicles is equipped with a daytime light relay that activates the high beam headlamps at approximately half illumination whene ...

    Front fog lamp
    System Diagram System Description BCM (Body Control Module) controls front fog lamp operation. IPDM E/R (Intelligent Power Distribution Module Engine Room) operates front fog lamp accordin ...

    Other materials:

    P0746 pressure control solenoid A
    Description The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the TCM. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE CAUTION: Always drive vehicle at a safe speed. NOTE: Immediately af ...

    Refrigerant pressure sensor
    Removal and Installation REMOVAL Discharge the refrigerant. Refer to HA-28, "Recycle Refrigerant". Remove the core support upper cover. Disconnect the harness connector from the refrigerant pressure sensor. Remove the refrigerant pressure sensor. CAUTION: Cap or wrap the ...

    P1574 ASCD vehicle speed sensor
    Description The ECM receives two vehicle speed signals via the CAN communication line. One is sent from combination meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD control. Refer to EC-68, "System Diagram" for ASCD functions. D ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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