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:
P1572 ASCD Brake switch
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P1572 is displayed with DTC P0605, first perform the trouble
diagnosis for DTC P0605. Refer
to EC-348, "DTC Logic".
This self-diagnosis has the one trip detection logic. When
malfunction A is detected, DTC is not
stored in ECM me ...
Precaution for work
When removing or disassembling each component, be careful not to damage
or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
When removing (disengaging) components with a screwdriver or similar
tool, be sure to wrap the component
with a ...
Drive belt
Automatic tensioner
Generator
Water pump
Air conditioner compressor
Crankshaft pully
WARNINGBe sure the ignition switch is in the OFF
or
LOCK position before servicing drive belt.
The engine could rotate unexpectedly.
Visually inspect the belt for signs of ...