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.
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:
Diagnosis system (bcm) (without intelligent key system)
Common item
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Wiper
Wiper : consult function (bcm - wiper)
DATA MONITOR
ACTIVE TES ...
DTC/circuit diagnosis
U1000 CAN COMM CIRCUIT
Description
Refer to lan-7, "can communication system : system description".
Dtc logic
Dtc detection logic
Note:
U1000 can be set if a module harness was disconnected and reconnected,
perhaps during a repair. Confirm
that there are actual CAN diagnostic symp ...
Basic inspection
Diagnosis and repair workflow
Work Flow (With GR8-1200 NI)
STARTING SYSTEM DIAGNOSIS WITH GR8-1200 NI
To test the starting system, use the following special service tool:
GR8-1200 NI Multitasking battery and electrical diagnostic station
NOTE:
Refer to the diagnostic station Instruction M ...
