Nissan X-Trail 32. Manual - part 405

DEF-4

< PRECAUTION >

PRECAUTIONS

2.

Turn key switch to the OFF position with the driver side door opened.

3.

Get out of the vehicle and close the driver side door.

4.

Wait at least 3 minutes. 

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

5.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

INSTRUCTION 2 (FOR VEHICLES PARKED BY IGNITION SWITCH OFF)

1.

Unlock the door with intelligent key or remote keyless entry.
NOTE:
At this moment, ACC power is supplied.

2.

Open the driver side door.

3.

Open the hood.

4.

Close the driver side door.

5.

Wait at least 3 minutes. 

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

6.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

COMPONENT PARTS

DEF-5

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000010774367

Back side of headlining assembly 
rear side

No.

Component

Function

Door mirror defogger

Refer to 

DEF-6, "Door Mirror Defogger"

.

BCM

• Receives rear window defogger switch signal.
• Performs the timer control of rear window defogger.
Refer to 

BCS-6, "BODY CONTROL SYSTEM : Component Parts Location"

 for detailed in-

stallation location.

Rear window defogger

Refer to 

DEF-6, "Rear Window Defogger"

.

JMLIA4909ZZ

DEF-6

< SYSTEM DESCRIPTION >

COMPONENT PARTS

Rear Window Defogger

INFOID:0000000010774368

Heats the heating wire with the power supply from the rear window
defogger relay to prevent the rear window from fogging up.

Door Mirror Defogger

INFOID:0000000010774369

Heats the heating wire with the power supply from the rear window
defogger relay to prevent the door mirror from fogging up.

A/C control
(Automatic air conditioning 
models)

• Rear window defogger switch is installed.
• Turns the indicator lamp ON when detecting the operation of rear window defogger.
Refer to 

HAC-8, "AUTOMATIC AIR CONDITIONING SYSTEM : Component Parts Loca-

tion"

 for detailed installation location.

A/C amp. 
(Manual air conditioning mod-
els)

• Rear window defogger switch is installed.
• A/C amp. transmits rear window defogger switch signal to BCM via CAN communication.
• A/C amp. receives rear window defogger feedback signal from BCM via CAN communi-

cation.

• Turns the indicator lamp ON when detecting the operation of rear window defogger. 
Refer to 

HAC-140, "MANUAL AIR CONDITIONING SYSTEM : Component Parts Location"

 

for detailed installation location.

A/C auto amp.
(Automatic air conditioning 
models)

• A/C auto amp. receives rear window defogger switch signal from A/C control and trans-

mits it to BCM via CAN communication.

• A/C auto amp. receives rear window defogger feedback signal from BCM via CAN com-

munication and transmits it to A/C control. 

Refer to 

HAC-8, "AUTOMATIC AIR CONDITIONING SYSTEM : Component Parts Loca-

tion"

 for detailed installation location.

Condenser

Condenser reduce the noise of rear window defogger operation

No.

Component

Function

JMLIA2595GB

JMLIA2596GB

SYSTEM

DEF-7

< SYSTEM DESCRIPTION >

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System Description

INFOID:0000000010774370

SYSTEM DIAGRAM

Automatic Air Conditioning Models

Manual Air Conditioning Models

REAR WINDOW DEFOGGER FUNCTION

Automatic Air Conditioning Models

• Turn rear window defogger switch ON when the ignition switch turns ON. Then A/C control transmits rear

window defogger switch signal to A/C auto amp. via LIN communication line.

• A/C auto amp. transmits rear window defogger switch signal to BCM via CAN communication.
• BCM turns rear window defogger relay ON and transmits rear window defogger feedback signal to A/C auto

amp. via CAN communication when rear window defogger switch signal is received.

• Rear window defogger and door mirror defogger are supplied with power and operate when rear window

defogger relay turns ON.

• A/C auto amp. transmit rear window defogger feedback signal to A/C control via LIN communication line

when rear window defogger feedback signal is received.

• A/C control turns on the rear window defogger indicator lamp when rear window defogger feedback signal is

received.

Manual Air Conditioning Models

• Turn rear window defogger switch ON when the ignition switch turns ON. Then A/C amp. transmits rear win-

dow defogger switch signal to BCM via CAN communication.

• BCM turns rear window defogger relay ON and transmits rear window defogger feedback signal to A/C amp.

via CAN communication when rear window defogger switch signal is received.

JMLIA5343GB

JMLIA5217GB