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:
Three Way Catalyst
If a large amount of unburned fuel flows into the catalyst, the catalyst
temperature will be excessively high. To
prevent this, follow the instructions.
Use unleaded gasoline only. Leaded gasoline will seriously damage the
three way catalyst.
When checking for ignition spark or measuring ...
Compression pressure
Inspection
Warm up the engine to full operating temperature.
Release fuel pressure. Refer to EC-143, "Work Procedure".
Remove ignition coil and spark plug from each cylinder. Refer to EM-46,
"Exploded View".
Connect engine tachometer (not required in use of CONSULT). ...
Front fog lamp circuit
Description
The ipdm e/r (intelligent power distribution module engine room) controls the
front fog lamp relay based on
inputs from the bcm over the can communication lines. When the front fog lamp
relay is energized, power
flows from the front fog lamp relay in the ipdm e/r to the front fog ...
