Nissan Sentra Service Manual: Rear window defogger feedback signal

Nissan Sentra Service Manual / Driver controls / Defogger / Dtc/circuit diagnosis / Rear window defogger feedback signal

Description

Turns the indicator lamp in the rear window defogger switch ON when operating the rear window defogger.

Component function check

1.Check rear window defogger feedback signal

Check that the indicator lamp of rear window defogger switch is illuminated when turning the rear window defogger switch on.

Is the inspection result normal? Ok >> rear window defogger feedback signal is ok.

Ng >> refer to def-39, "diagnosis procedure".

Diagnosis procedure

1.Check rear window defogger feedback signal

Turn ignition switch on.
Turn rear window defogger switch on.
Check voltage between a/c auto amp. 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.

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Symptom diagnosis

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