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

DAYTIME RUNNING LIGHT SYSTEM

XENON TYPE

System Diagram


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System Description

 
 OUTLINE

  • Turns the headlamp high ON (high beam at approximately half illumination) as the daytime running light.
  • Daytime running light is controlled by daytime running light control function and combination switch reading function of BCM, and relay control function of IPDM E/R.
 
 DAYTIME RUNNING LIGHT OPERATION

  • BCM detects the combination switch condition by the combination switch reading function.
  • BCM detects the engine condition by the engine status signal received from ECM with CAN communication.
  • BCM detects the parking brake condition by the parking brake switch signal received from combination meter with CAN communication.
  • BCM transmits the daytime running light request signal to IPDM E/R with CAN communication according to the daytime running light ON condition.

    • Daytime running light ON condition
    • Engine running
    • Lighting switch OFF or 1ST
    • Parking brake switch OFF
    • Ignition switch ON
  • IPDM E/R controls the daytime running light relay (ground-side) to turn ON according to the daytime running light request signal.
  • Power is supplied from the daytime running light relay through headlamp high (RH) and IPDM E/R to headlamp high (LH). And high beam headlamps are illuminated (approximately half illumination) as the daytime running light.

Component Parts Location



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1.
 		Parking brake switch
 		2.
 		Daytime running light
(Headlamp HI)
 		3.
 		Combination switch
4.
 		Combination meter
 		5.
 		ECM
 		6.
 		BCM
7.
 		IPDM E/R
 		8.
 		Daytime running light relay

A.
 		Over the glove box
 		B.
 		Dash side lower (passenger side)
 		C.
 		Engine room dash panel (RH)
D.
 		Engine room dash panel (RH)




Component Description


Part
 		Description
BCM
  • Detects each switch condition with the combination switch reading function.
  • Judges each lamps ON/OFF condition according to the vehicle condition.
    • Requests the each relay ON to IPDM E/R (with CAN communication).
IPDM E/R
 		Controls the relay and supplies voltage to the load according to the request from BCM (with CAN communication).
Daytime running light relay
 		Switches headlamp (HI) circuit to illuminate the daytime running light.
Combination switch
(Lighting & turn signal switch)
 		Refer to System Diagram.
ECM
 		Transmits the engine status signal to BCM (with CAN communication).
Combination meter
 		Transmits the parking brake switch signal to BCM (with CAN communication).