Nissan GT-R (R35) · Service Manual DRIVER CONTROLS

EXTERIOR LAMP BATTERY SAVER SYSTEM

XENON TYPE

System Diagram


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System Description

 
 OUTLINE

  • Exterior lamp battery saver system is controlled by each function of BCM and IPDM E/R.

    • Control by BCM
    • Combination switch reading function
    • Headlamp control function
    • Exterior lamp battery saver function

    Control by IPDM E/R
    • Relay control function
  • BCM turns the exterior lamp* OFF after a period of time to prevent the battery from over-discharge when the ignition switch is turned OFF with the exterior lamp ON.
*: Headlamp (LO/HI), parking lamp, tail lamp, side marker lamp, license plate lamp.
 
 EXTERIOR LAMP BATTERY SAVER ACTIVATION

BCM activates the timer and turns the exterior lamp OFF 5 minutes after the ignition switch is turned from ON → OFF with the exterior lamps ON.
NOTE：
  • Headlamp control function turns the exterior lamps ON normally when the ignition switch is turned ACC or the engine started (both before and after the exterior lamp battery saver is turned OFF).
  • The timer starts at the time that the lighting switch is turned from OFF → 1ST or 2ND with the exterior lamp OFF.

Component Parts Location



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1.
 		Combination switch
 		2.
 		Combination meter
 		3.
 		BCM
4.
 		IPDM E/R



A.
 		Dash side lower (passenger side)
 		B.
 		Engine room dash panel (RH)


Component Description


Part
 		Description
BCM
  • Detects each switch condition by the combination switch reading function.
  • Judges the exterior lamp OFF according to the vehicle condition.
    • Requests each relay OFF to IPDM E/R (with CAN communication).
IPDM E/R
 		Controls the integrated relay according to the request from BCM (with CAN communication).
Combination switch
(Lighting & turn signal switch)
 		Refer to System Diagram.