Infiniti G35 (V35). Manual - part 547

REAR WINDOW DEFOGGER

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through body grounds M30, and M66.

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to A/C and audio controller  terminal 3

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through body grounds M30 and M66.

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to internal CPU of IPDM E/R terminal 38 and 60

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through body grounds E17, and E43. 

When A/C and audio controller (rear window defogger switch) is turned to ON,
Ground is supplied 

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to BCM terminal 9

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through A/C and audio controller terminal 12

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through A/C and audio controller terminal 3

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through body grounds M30 and M66.

Then rear window defogger switch is illuminated.
Then BCM recognizes that rear window defogger switch is turned to ON. 
Then it sends rear window defogger switch signals to IPDM E/R via DATA LINE (CAN-H, CAN-L).
When IPDM receives rear window defogger switch signals, 
Ground is supplied

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to rear window defogger relay terminal 2

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through IPDM E/R terminal 52

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through internal CPU of IPDM E/R and IPDM E/R terminal 60

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through body grounds E17 and E43.

and then rear window defogger relay is energized. 
When rear window defogger relay is turned ON, 
Power is supplied,

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through rear window defogger relay terminals 5 and 7

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to rear window defogger terminal 2.

Rear window defogger terminal 1, is grounded through body ground B452. 
With power and ground supplied, rear window defogger filaments heat and defog the rear window.
When rear window defogger relay is turned to ON, 
Power is supplied

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through rear window defogger relay terminals 5 and 7

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through fuse block (J/B) terminal 2C

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through 10A fuse [No. 8, located in the fuse block (J/B)]

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through fuse block (J/B) terminal 5B

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to door mirror defogger (Driver side and passenger side) terminal 2.

Door mirror defogger (Driver side and passenger side) terminal 1 is grounded through body grounds M30 and
M66.
With power and ground supplied, door mirror defogger filaments heat and defog the mirror. 

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CAN Communication System Description

NIS000F2

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit

NIS000F3

Refer to 

LAN-47, "CAN System Specification Chart"

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Schematic – DEF –

NIS000F4

TIWM0473E

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REAR WINDOW DEFOGGER

Wiring Diagram –DEF– 

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TIWM1010E