Nissan Sentra manuals

Nissan Sentra Service Manual: Rear window defogger switch

Description

Component function check

1. Check rear window defogger switch function

  1. Check (“REAR DEF SW”) in BCM - REAR DEFOGGER “DATA MONITOR” mode by using CONSULT.
  2. Operate rear window defogger switch and check the status on consult screen.

Is the inspection result normal?


Is the inspection result normal? Yes >> rear window defogger switch function is ok.

No >> refer to def-30, "diagnosis procedure".

Diagnosis procedure

Regarding wiring diagram information, refer to def-20, "wiring diagram".

1. Check rear window defogger on signal circuit

  1. Turn ignition switch to on.
  2. Turn rear window defogger switch ON.
  3. Check voltage between bcm connector and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> replace bcm. Refer to bcs-73, "removal and installation" (with intelligent key system) or bcs- 126, "removal and installation" (without intelligent key system).

No >> go to 2.

2. Check harness continuity

  1. Turn ignition switch to off.
  2. Disconnect bcm and a/c auto amp.
  3. Check continuity between BCM connector and A/C auto amp.


  1. Check continuity between bcm harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> Replace A/C auto amp. Refer to HAC-105, "Removal and Installation" (with auto A/C) or HAC- 189, "Removal and Installation" (without auto A/C).

NO >> Repair or replace harness.

Dtc/circuit diagnosis
...

Rear window defogger relay
Description Power is supplied to the rear window defogger with BCM control. Component Function Check 1. Check rear window defogger relay power supply circuit Turn ignition switch ON. Check ...

Other materials:

System description
Component parts Component parts location Ipdm e/r System Relay control system Relay control system : system diagram Relay control system : system description Description IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input ...

C1606 EPS Motor
DTC Logic DTC DETECTION LOGIC Dtc Display item Malfunction detected condition Possible cause C1606 EPS MOTOR When the motor driver malfunction of EPS control unit or EPS motor malfunction is detected. Harness or connector EPS motor Eps control ...

Diagnosis system (BCM)
Common item Common item : consult function (bcm - common item) APPLICATION ITEM CONSULT performs the following functions via CAN communication with BCM. SYSTEM APPLICATION BCM can perform the following functions. Intelligent key Intelligent key : consult function (bcm - intelligent ke ...

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