Nissan Sentra Service Manual: Seat belt buckle switch signal circuit
Description
Transmits a seat belt buckle switch lh (driver seat) signal to the combination meter
Component function check
1. Check combination meter input signal
Select data monitor for meter/m&a and check the buckle sw monitor value.
YES >> Inspection End.
NO >> Refer to WCS-29, "Diagnosis Procedure".
Diagnosis procedure
Regarding wiring diagram information, refer to wcs-17, "wiring diagram".
1.Check combination meter input signal
- Turn ignition switch on.
- Check voltage between combination meter harness connector m24 terminal 9 and ground.
Is the inspection result normal? Yes >> replace combination meter. Refer to mwi-77, "removal and installation".
No >> go to 2.
2.Check seat belt buckle switch circuit
- Turn ignition switch OFF.
- Disconnect combination meter harness connector m24 and seat belt buckle switch lh (driver seat) harness connector b16.
- Check continuity between combination meter harness connector m24 terminal 9 and seat belt buckle switch lh (driver seat) harness connector b16 terminal 1.
- Check continuity between combination meter harness connector m24 terminal 9 and ground.
Is the inspection result normal?
Yes >> go to 3.
No >> repair or replace harness or connector.
3.Check seat belt buckle switch ground circuit
Check continuity between seat belt buckle switch lh (driver seat) harness connector b16 terminal 2 and ground.
Is the inspection result normal? Yes >> check the seat belt buckle switch. Refer to wcs-30, "component inspection".
No >> repair or replace harness or connector.
Component inspection
1. Check seat belt buckle switch
- Turn ignition switch off.
- Disconnect the seat belt buckle switch lh (driver seat).
- Check continuity between the seat belt buckle switch lh (driver seat) terminals 1 and 2.
Is the inspection result normal? Yes >> inspection end.
No >> replace the seat belt buckle switch lh (driver seat). Refer to sr-32, "removal and installation".
Meter buzzer circuit
Description
The buzzer for warning chime system is installed in the combination
meter.
The combination meter sounds the alarm buzzer based on the signals
transmitted from various units.
...
Other materials:
Door lock and unlock switch
Component function check
1.Check function
Select door lock of bcm using consult.
Select cdl lock sw, cdl unlock sw in data monitor mode.
Check that the function operates normally according to the following
conditions.
Is the inspection result normal?
YES >> Main power windo ...
P0222, P0223 TP Sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0222 or P0223 is displayed with DTC P0643, first perform the
trouble diagnosis for DTC P0643.
Refer to EC-353, "DTC Logic".
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible caus ...
Ecu diagnosis information
Av control unit
Reference value
TERMINAL LAYOUT
PHYSICAL VALUES
Dtc index
...
