Nissan Sentra Service Manual: Ambient sensor signal circuit
Description
It detects outside air temperature and converts it into a resistance value which is then input into the combination meter.
Diagnosis Procedure
Regarding wiring diagram information, refer to mwi-28, "wiring diagram".
1.Check ambient sensor signal circuit
- Turn ignition switch off.
- Disconnect combination meter connector and ambient sensor connector.
- Check continuity between combination meter harness connector and ambient sensor harness connector.
- Check continuity between combination meter harness connector and ground.
Is the inspection result normal? Yes >> go to 2.
No >> repair or replace harness or connector.
2.Check ambient sensor signal ground circuit
Check continuity between combination meter harness connector and ambient sensor harness connector.
Is the inspection result normal? YES >> Inspection End.
NO >> Repair or replace harness or connector.
Component Inspection
1.Check ambient sensor
- Turn ignition switch OFF.
- Disconnect ambient sensor connector.
- Check resistance between ambient sensor terminals.
Is the inspection result normal? Yes >> inspection end.
No >> replace ambient sensor. Refer to hac-106, "removal and installation".
Parking brake switch signal circuit
Component function check
1.Check parking brake switch operation
Check that brake warning lamp in combination meter turns on/off when parking
brake is actuated.
Is the inspection result normal?
...
A/c auto amp. Connection recognition signal circuit
Description
A/c auto amp. Transmits the a/c auto amp. Connection recognition signal to
the combination meter
Diagnosis procedure (with manual a/c)
Regarding wiring diagram information, refer to ...
Other materials:
Wiring diagram
Interior room lamp control system
Wiring diagram
Illumination
Wiring diagram
...
Fuel pump
Component Function Check
1.CHECK FUEL PUMP FUNCTION
Turn ignition switch ON.
Pinch fuel feed hose with
two fingers.
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
Is the inspection result normal?
YES >> INSPECT ...
Changing engine oil
Park the vehicle on a level surface and apply
the parking brake.
Start the engine and let it idle until it reaches
operating temperature, then turn it off.
Remove the oil filler cap A by turning it
counterclockwise.
Place a large drain pan under the drain plug
B .
Remove the d ...
