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.

Passenger side door mirror defogger

Description Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up. Component function check 1.Check door mirror defogger rh ...

Symptom diagnosis

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Other materials:

Bcm branch line circuit
Diagnosis Procedure 1.Check connector Turn the ignition switch off. Disconnect the battery cable from the negative terminal. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and connector side). Is the inspection result normal? YES > ...

Push-Button Ignition Switch (if so equipped)
WARNINGDo not operate the push-button ignition switch while driving the vehicle except in an emergency. (The engine will stop when the ignition switch is pushed 3 consecutive times in quick succession or the ignition switch is pushed and held for more than 2 seconds.) If ...

System description
Refrigeration system Component part location High-pressure service port High-pressure pipe Expansion valve Low-pressure service port Low-pressure flexible hose Compressor Refrigerant pressure sensor Condenser and liquid tank assembly High-pressure flexible hose Refrigera ...