Nissan Quest E52. Manual - part 631

EXL-128

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

SYSTEM

AUTO LIGHT SYSTEM (EXCEPT FOR CANADA) : Circuit Diagram

INFOID:0000000009653126

AUTO LIGHT SYSTEM (FOR CANADA)

JMLIA2114GB

SYSTEM

EXL-129

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

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AUTO LIGHT SYSTEM (FOR CANADA) : System Description

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SYSTEM DIAGRAM

OUTLINE

•  Auto light system is controlled by each function of BCM and IPDM E/R.

Control by BCM

- Combination switch reading function
- Headlamp control function
- Auto light function
- Delay timer function
- Auto light adjustment system

Control by IPDM E/R

- Relay control function
• Auto light system has the auto light function and delay timer function.
- Auto light function automatically turns ON/OFF the exterior lamps* and each illumination automatically,

depending on the outside brightness.

- When auto light system turns the exterior lamps ON with the ignition switch OFF, delay timer function turns

the exterior lamps OFF, depending on the vehicle condition with the auto light function after a certain period
of time.

*: Headlamp (LO/HI), parking lamp, side marker lamp, tail lamp and front fog lamp (Headlamp HI and front fog
lamp depend on the combination switch condition.)

AUTO LIGHT FUNCTION

• BCM detects the combination switch condition with the combination switch reading function.
• BCM supplies voltage to optical sensor when the ignition switch is turned ON or ACC.
• Optical sensor converts outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.
• BCM judges outside brightness from the optical sensor signal and judges ON/OFF condition of the exterior

lamp and each illumination according to the outside brightness. 

• BCM transmits each request signal to IPDM E/R and combination meter via CAN communication according

to ON/OFF condition by the auto light function.

NOTE:
ON/OFF timing differs based on the sensitivity from the setting. The setting can be set by CONSULT. Refer to

EXL-144, "HEADLAMP : CONSULT Function (BCM - HEADLAMP) (Halogen Type Headlamp)"

.

AUTO LIGHT ADJUSTMENT SYSTEM

The auto light adjustment system automatically, dims/brightens the display, according to brightness outside
the vehicle, when lighting switch 1ST, lighting switch 2ND or lighting switch AUTO is operated. Refer to 

INL-

17, "AUTO LIGHT ADJUSTMENT SYSTEM : System Description"

.

DELAY TIMER FUNCTION

JMLIA1254GB

EXL-130

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

SYSTEM

BCM turns the exterior lamp OFF depending on the vehicle condition with the auto light function when the igni-
tion switch is turned OFF.
• Turns the exterior lamp OFF 5 minutes after detecting that any door opens. (Door switch ON).
• Turns the exterior lamp OFF a certain period of time* after closing all doors. (Door switch ON

→

OFF).

• Turns the exterior lamp OFF with the ignition switch ACC or the light switch OFF.
*: The preset time is 45 seconds. The timer operating time can be set by CONSULT. Refer to 

EXL-144,

"HEADLAMP : CONSULT Function (BCM - HEADLAMP) (Halogen Type Headlamp)"

.

NOTE:
When any position other than the light switch AUTO is set, the auto light system function switches to the exte-
rior lamp battery saver function.

SYSTEM

EXL-131

< SYSTEM DESCRIPTION >

[HALOGEN TYPE]

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AUTO LIGHT SYSTEM (FOR CANADA) : Circuit Diagram

INFOID:0000000009653128

DAYTIME RUNNING LIGHT SYSTEM

JMLIA2114GB