Nissan Sentra Service Manual: 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? 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 ...
Other materials:
Diagnosis description : driving pattern
DRIVING PATTERN A
Driving pattern A means a trip satisfying the following conditions.
Engine speed reaches 400 rpm or more.
Engine coolant temperature rises by 20В°C (36В°F) or more after starting
the engine.
Engine coolant temperature reaches 70В°C (158В°F) or more.
The igniti ...
Interior room lamp control circuit
Description
Controls each interior room lamp (ground side) by pwm signal.
Note:
Pwm signal control period is approximately 250 hz (in the gradual
brightening/dimming).
Component function check
Caution:
Before performing the diagnosis, check that the following are normal.
Interior room l ...
Symptom diagnosis
The sport mode indicator lamp does not turn on
Description
The sport mode indicator lamp does not turn on when the sport mode switch is
operated.
Diagnosis procedure
1.Perform combination meter on board diagnosis
Perform combination meter on board diagnosis. Refer to mwi-16, "descriptio ...