Nissan Sentra Service Manual: 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 the following terminals of the combination meter.
Is the inspection result normal? Yes >> inspection end.
No >> go to 2.
2.Check steering switch signal circuit
- Turn ignition switch OFF.
- Disconnect combination meter connector m24 and combination switch connector m80.
- Check continuity between combination meter harness connector and steering switch harness connector.
- Check continuity between combination meter harness connector and ground.
Is the inspection result normal? Yes >> inspection end.
No >> repair or replace harness or connector.
Component Inspection
1.Check steering switch
Check continuity between spiral cable terminals.
Is the inspection result normal? Yes >> inspection end.
No >> replace steering switch. Refer to st-10, "removal and installation".
Power supply and ground circuit
Combination meter
COMBINATION METER : Diagnosis Procedure
Regarding Wiring Diagram information, refer to MWI-28, "Wiring Diagram".
1.Check fuses
Check that the following fuses are not bl ...
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 ...
Other materials:
P0037, P0038 HO2S2 Heater
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0037
HO2 HTR (B1)
(HO2S heater control circuit
low bank 1 sensor 2)
The current amperage in the heated oxygen sensor
2 heater ci ...
P0138 HO2S2
DTC Logic
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time between rich and
lean than the air fuel ratio (A/
F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold)
causes the longer switching
time.
MALFUNCTION A
To judge the malfunction ...
Removal and installation
Ipdm e/r
Exploded view
Ipdm e/r
IPDM E/R cover A
Ipdm e/r cover b
Removal and installation
Caution:
Ipdm e/r integrated relays are not serviceable and must not be removed
from unit.
Removal
Remove inlet air duct (upper). Refer to em-25, "removal and
installation" ...
