Nissan Sentra Service Manual: Illumination control switch signal circuit
Diagnosis procedure
Regarding wiring diagram information, refer to mwi-28, "wiring diagram".
1.Check combination meter input signal
- Turn ignition switch on.
- Check voltage between the following terminals of the illumination control switch.
Is the inspection result normal? YES >> Inspection End.
NO >> GO TO 2.
2.Check illumination control switch signal circuit
- Turn ignition switch off
- Disconnect combination meter connector m24 and illumination control switch connector m66.
- Check continuity between combination meter harness connector and illumination control switch harness connector.
- Check continuity between combination meter harness connector and ground.
Is the inspection result normal? Yes >> check illumination control switch. Refer to mwi-56, "component inspection".
No >> repair or replace harness or connector.
Component inspection
1.Check illumination control switch
- Turn ignition switch OFF.
- Disconnect illumination control switch connector.
- Check illumination control switch.
Is the inspection result normal? Yes >> inspection end.
No >> replace illumination control switch. Refer to mwi-80, "removal and installation".
Steering switch (meter control switch) signal circuit
Diagnosis Procedure
Regarding wiring diagram information, refer to mwi-28, "wiring diagram".
1.Check combination meter input signal
Turn ignition switch on.
Measure voltage between ...
Fuel level sensor signal circuit
Description
The fuel level sensor unit and fuel pump detects the approximate fuel level
in the fuel tank and transmits the
fuel level signal to the combination meter.
Component function check
1 ...
Other materials:
P0720 Output speed sensor
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
Possible causes
P0720
OUTPUT SPEED SENSOR
(Output Speed Sensor Circuit)
The output speed sensor value is less than
150 rpm continuously for 5 seconds ...
Connector symbols
Most of connector symbols in wiring diagrams are shown from the terminal
side.
Connector symbols shown from the terminal side are enclosed by
a single line and followed by the direction mark.
Connector symbols shown from the harness side are enclosed by
a double line and followed by the ...
P0448 EVAP Canister vent control valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0448
VENT CONTROL VALVE
(Evaporative emission system
vent control circuit shorted)
EVAP canister vent control valve remains
clos ...
