Nissan Sentra Service Manual: Both doors mirror defogger don’t operate but rear window defogger operates
Diagnosis procedure
Regarding Wiring Diagram information, refer to DEF-20, "Wiring Diagram".
1. Check door mirror defogger fuse
Check if the following fuse in fuse block (J/B) is blown.
Is the inspection result normal? Yes >> go to 2.
No >> replace the blown fuse after repairing the affected circuit.
2. Check door mirror defogger power supply circuit
Check door mirror defogger power supply and ground circuit.
Refer to def-35, "component function check" (driver side) or def-37, "component function check" (passenger side).
Is the inspection result normal? Yes >> go to 3.
No >> repair or replace the malfunctioning parts.
3. Check both door mirror defogger
- Check door mirror lh. Refer to def-36, "component inspection".
- Check door mirror RH. Refer to DEF-38, "Component Inspection".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
Rear window defogger does not operate but both door mirror defoggers operate
Diagnosis procedure
1. Check rear window defogger power supply and ground circuit
Check rear window defogger power supply and ground circuit.
Refer to DEF-32, "Component Function Check" ...
Driver side door mirror defogger does not operate
Diagnosis procedure
1. Check door mirror defogger lh
Check door mirror defogger LH.
Refer to DEF-35, "Component Function Check".
Is the inspection result normal?
YES >> Refer ...
Other materials:
Diagnosis system (TCM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1 Trip Detection Diagnosis and 2 Trip Detection
Diagnosis
NOTE:
“Start the engine and turn OFF the ignition switch after warm-up.” This is
defined as 1 trip.
TRIP DETECTION DIAGNOSIS
When initial malfunction is detected, TCM mem ...
Basic inspection
Diagnosis and repair work flow
Work flow
Overall sequence
Detailed flow
1.Get information for symptom
Get the detailed information from the customer about the symptom (the
condition and the environment when
the incident/malfunction occurred) using the “diagnostic work sheet”. ( ...
System
Body control system
Body control system : system description
OUTLINE
BCM (Body Control Module) controls the various electrical components. It
inputs the information required to
the control from CAN communication and the signal received from each switch
and sensor.
BCM has combination ...