Nissan Rogue (T33) 2021-Present Service Manual: System Description :: System

System Description

SYSTEM DIAGRAM

INPUT/OUTPUT SIGNAL CHART

OPERATION DESCRIPTION

• Turn rear window defogger switch ON when the engine running. Then A/C switch assembly transmits rear window defogger switch signal to A/C amp. via LIN communication line.

• A/C amp. transmits rear window defogger request signal to BCM via CAN communication.

• BCM turns rear window defogger relay, and wiper deicer relay, ON and transmits rear window defogger feedback signal to A/C amp. via CAN communication when rear window defogger request signal is received.

• Rear window defogger, door mirror defogger, and wiper deicer are supplied with power and operate when rear window defogger relay and wiper deicer relay turns ON.

• A/C amp. transmit rear window defogger feedback signal to A/C switch assembly via LIN communication line when rear window defogger feedback signal is received.

• A/C switch assembly turns on the rear window defogger indicator lamp when rear window defogger feedback signal is received.

• When remote engine start function is operated, according to the Nissan Ariya vehicle situation* A/C amp. transmits the rear window defogger request signal to BCM via CAN communication. For details, refer to Remote Engine Start Control.

  NOTE:

  *: Depending on the Nissan Ariya vehicle situation (ambient temperature, in-vehicle temperature and sunload etc.) it is not operated.

TIMER FUNCTION

• BCM turns rear window defogger relay, and wiper deicer relay, ON for approximately 20 minutes when rear window defogger switch turns ON. It makes rear window defogger, door mirror defogger, and wiper deicer, operate.

• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns rear window defogger relay, and wiper deicer relay, OFF. The same reaction also occurs during timer operation, if the ignition switch is turned OFF.