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:

Radio
With the ignition placed in the ACC or ON position, press the PWR (power)/VOL (volume) knob to turn the radio on. If you listen to the radio with the engine not running, the ignition should be placed in the ACC position. Radio reception is affected by station signal strength, distance from r ...

VDC OFF Indicator lamp
Description Component Function Check 1.CHECK VDC OFF INDICATOR LAMP FUNCTION Check that VDC OFF indicator lamp in combination meter turns ON for approximately 2 seconds after ignition switch is turned ON. Is the inspection result normal? YES >> Inspection End. NO >> Proc ...

Unexpected pedal reaction
Diagnosis Procedure 1.CHECK BRAKE PEDAL STROKE Check brake pedal stroke. Refer to BR-15, "Adjustment". Is the stroke too big? YES >> Bleed air from brake line and hose. Refer to BR-17, "Bleeding Brake System". Check brake pedal, brake booster, and maste ...

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