Nissan Sentra Service Manual: Rear window defogger and door mirror defoggers do not operate
Diagnosis procedure
Regarding Wiring Diagram information, refer to DEF-20, "Wiring Diagram".
1. Check rear window defogger switch
Check rear window defogger switch.
Refer to def-30, "component function check".
Is the inspection result normal? Yes >> go to 2.
No >> repair or replace the malfunctioning parts.
2. Check rear window defogger relay
Check rear window defogger relay.
Refer to def-32, "component function check".
Is the inspection result normal? Yes >> go to 3 .
No >> repair or replace the malfunctioning parts.
3. Check rear window defogger power supply and ground circuit
Check rear window defogger power supply and ground circuit.
Refer to def-33, "component function check".
Is the inspection result normal? Yes >> check intermittent incident. Refer to gi-39, "intermittent incident".
No >> repair or replace the malfunctioning parts.
Defogger system symptoms
Symptom table
*: if equipped ...
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" ...
Other materials:
P0127 IATSensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0127
IAT SENSOR-B1
(Intake air temperature too high)
Rationally incorrect voltage from the sensor is
sent to ECM, compared with the ...
Diagnosis system (combination meter)
Consult function (meter/m&a)
Application items
Consult can perform the following diagnosis modes via can communication and
the combination meter.
Self diag result
Refer to mwi-26, "dtc index".
Data monitor
Display item list
Note:
Some items are not available accor ...
Main power supply and ground circuit
Diagnosis Procedure
1.CHECK TCM POWER CIRCUIT (PART 1)
Turn ignition switch OFF.
Disconnect TCM connector.
Check voltage between TCM harness connector terminals and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK TCM POWER CIRCUIT (PAR ...
