Nissan Sentra Service Manual: 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 blown.
Is the fuse blown? Yes >> replace the blown fuse after repairing the affected circuit.
No >> go to 2.
2.Power supply circuit check
Check voltage between combination meter harness connector m24 terminals 15, 27, 28 and ground
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connector.
3.Check ground circuit
Check continuity between combination meter harness connector m24 terminals 21, 22, 23 and ground.
Is the inspection result normal? Yes >> inspection end.
No >> repair or replace harness or connector.
Bcm (body control system) (with intelligent key system)
Bcm (body control system) (with intelligent key system) : diagnosis procedure
Regarding wiring diagram information, refer to bcs-51, "wiring diagram".
1.Check fuses and fusible link
Check that the following fuses and fusible link are not blown.
Is the fuse blown? Yes >> replace the blown fuse or fusible link after repairing the affected circuit.
No >> go to 2.
2.Check power supply circuit
- Disconnect bcm connector m85.
- Check voltage between BCM connector M85 and ground.
Is the inspection result normal? Yes >> go to 3.
No >> repair harness or connector.
3.Check ground circuit
Check continuity between bcm connector m85 and ground.
Is the inspection result normal? Yes >> inspection end.
No >> repair harness or connector.
Bcm (body control system) (without intelligent key system)
Bcm (body control system) (without intelligent key system) : diagnosis procedure
Regarding Wiring Diagram information, refer to BCS-111, "Wiring Diagram".
1.Check fuses and fusible link
Check that the following fuses and fusible link are not blown.
Is the fuse blown? Yes >> replace the blown fuse or fusible link after repairing the affected circuit.
No >> go to 2.
2.Check power supply circuit
- Turn ignition switch off.
- Disconnect bcm connectors.
- Check voltage between bcm connector and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair harness or connector.
3.Check ground circuit
Check continuity between BCM connector and ground.
Is the inspection result normal? Yes >> inspection end.
No >> repair harness or connector.
B2268 water temp
Description
The engine coolant temperature signal is transmitted from ecm to the
combination meter via can communication.
Dtc logic
Dtc detection logic
Dtc
Consult
Detection condit ...
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 ...
Other materials:
Interior room lamp control circuit
Description
Controls each interior room lamp (ground side) by pwm signal.
Note:
Pwm signal control period is approximately 250 hz (in the gradual
brightening/dimming).
Component function check
Caution:
Before performing the diagnosis, check that the following are normal.
Interior room l ...
Brake fluid
Inspection
BRAKE FLUID LEVEL
Make sure that the brake fluid level in the reservoir tank is between
the MAX and MIN lines.
Visually check around the reservoir tank for brake fluid leakage.
If the brake fluid level is excessively low, check the brake system
for leakage.
If brake warning ...
Rocker cover
Exploded View
Oil filler cap
Rocker cover protector
Oil filler tube
O-ring
Rocker cover
Rocker cover gasket
Refer to INSTALLATION
Removal and Installation
REMOVAL
Remove intake manifold. Refer to EM-27, "Exploded View".
Remove rocker cover protector.
Re ...
