Nissan X-Trail 32. Manual - part 1147

SYSTEM

EXL-45

< SYSTEM DESCRIPTION >

[LED HEADLAMP]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

FRONT FOG LAMP SYSTEM : Circuit Diagram

INFOID:0000000010788766

FRONT FOG LAMP SYSTEM : Fail-safe

INFOID:0000000010788767

FAIL-SAFE CONTROL BY DTC

IPDM E/R performs fail-safe control when any DTC are detected.

JMLIA5356GB

EXL-46

< SYSTEM DESCRIPTION >

[LED HEADLAMP]

SYSTEM

CAN COMMUNICATION CONTROL

When CAN communication with BCM is impossible, IPDM E/R performs fail-safe control. After CAN communi-
cation recovers normally, it also returns to normal control.

If No CAN Communication Is Available With BCM

REAR FOG LAMP SYSTEM

REAR FOG LAMP SYSTEM : System Description

INFOID:0000000010788768

SYSTEM DIAGRAM

OUTLINE

Rear fog lamp is controlled with the combination switch reading function and the rear fog lamp control function
of BCM. 

REAR FOG LAMP OPERATION

• BCM detects the condition of the combination switch by the combination switch reading function.
• BCM supplies voltage to rear fog lamp according to the rear fog lamp ON condition.

Rear fog lamp ON condition

- Rear fog lamp switch is turned from OFF to ON, and any of the following conditions are satisfied.
• Headlamp ON
• Front fog lamp ON
• Lighting switch AUTO (Only when the illumination judgment by auto light system is ON. For details, refer to

EXL-24, "AUTO LIGHT SYSTEM : System Description"

.)

• BCM transmits the rear fog lamp status signal to the combination meter using CAN communication. 
• Combination meter turns the rear fog lamp indicator lamp ON according to the rear fog lamp status signal.

DTC

CONSULT display description

Fail-safe

B121A

FR FOG LAMP LH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the front fog lamp LH power 
supply circuit until the front fog lamp ON conditions are no 
longer satisfied.

B1256

FR FOG LAMP RH PWR SPLY CIRC

[CIRC 
SHORT TO 
GRND]

Shuts off the power supply to the front fog lamp RH power 
supply circuit until the front fog lamp ON conditions are no 
longer satisfied.

Control part

Fail-safe operation

Front fog lamp

Front fog lamp: OFF

JMLIA3188GB

SYSTEM

EXL-47

< SYSTEM DESCRIPTION >

[LED HEADLAMP]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

REAR FOG LAMP SYSTEM : Circuit Diagram

INFOID:0000000010788769

EXTERIOR LAMP BATTERY SAVER SYSTEM

JMLIA5357GB

EXL-48

< SYSTEM DESCRIPTION >

[LED HEADLAMP]

SYSTEM

EXTERIOR LAMP BATTERY SAVER SYSTEM : System Description

INFOID:0000000011008907

SYSTEM DIAGRAM

OUTLINE

• Exterior lamp battery saver system is controlled by combination switch reading function and exterior lamp

battery saver function of BCM, and smart FET control function of IPDM E/R.

• BCM turns the exterior lamp* OFF, according to the vehicle status when ignition switch is turned OFF while

exterior lamp is ON, for preventing battery discharge.

*: Headlamp (LO/HI), front fog lamp, rear fog lamp, parking lamp, license plate lamp and tail lamp

EXTERIOR LAMP BATTERY SAVER ACTIVATION

• BCM turns the exterior lamps OFF (battery saver is activated) when all of the following conditions are satis-

fied. 

- Exterior lamp: ON
- Engine status: Running

→

Stop (ignition switch is turned OFF)

- Front door switch (driver side): OFF

→

ON

NOTE:
When in any of following conditions (after the exterior lamp battery saver is activated), exterior lamps (except
front fog lamp and rear fog lamp) can be turned ON.
• Lighting switch: 1ST or 2ND

→

OFF or AUTO

→

1ST or 2ND

• Engine status: Stop

→

Running

JMLIA5240GB