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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Wiper System & Washer System) >> System Description >> Component Parts >> Component Description

Component Description

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
Part Description
IPDM E/R
  • Controls the integrated relay according to the request (via CAN communication) from BCM.
  • Performs the auto stop control of the front wiper.
BCM
  • Judges each switch status by the combination switch reading function.
  • Requests (via CAN communication) the front wiper relay and the front wiper high relay ON to IPDM E/R.
  • Supplies power to the rear wiper motor.
  • Performs the auto stop control of the rear wiper.
  • Requests (via CAN communication) the headlamp washer relay ON to IPDM I/R.
Rain sensor Detects water droplets on the windshield with infrared rays, and transmits the rain sensor signal to BCM via the rain sensor serial link.
Combination switch (Wiper & washer switch) Refer to "COMBINATION SWITCH READING SYSTEM: SYSTEM DESCRIPTION ".
Washer switch Refer to "WASHER SWITCH ".
Washer pump
  • Washer fluid is sprayed according to washer switch states.
  • Combination switch operates front washer or rear washer by changing voltage polarity to be supplied to washer pump.
Headlamp washer pump(1) Washer fluid is sprayed according to washer switch states and headlamp switch status.
Front wiper motor
  • IPDM E/R controls front wiper operation.
  • Front wiper stop position signal is transmitted to IPDM E/R.
Rear wiper motor
  • BCM controls rear wiper operation.
  • Rear wiper stop position signal is transmitted to BCM.
Combination meter Transmits the vehicle speed signal to BCM via CAN communication.
(1) For models with headlamp washer