Nissan Altima (L32) 2007-2012 Service Manual ≻ Body control system bcm ≻ Component diagnosis ≻ Combination switch input circuit

Nissan Altima (L32) 2007-2012 Service Manual: Combination switch input circuit

Diagnosis Procedure

1. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN

1. Turn the ignition switch OFF.

2. Disconnect the BCM and combination switch.

3. Check continuity between BCM harness connector and combination switch harness connector.

Does continuity exist? YES >> GO TO 2

NO >> Repair or replace harness.

2. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT

Check for continuity between BCM harness connector and ground.

Does continuity exist? YES >> Repair or replace harness.

NO >> GO TO 3

3. CHECK BCM OUTPUT VOLTAGE

1. Connect the BCM.

2. Check voltage between BCM harness connector and ground.

Is the measurement normal? YES >> GO TO 4

NO >> Replace BCM. Refer to BCS-96, "Removal and Installation".

4. CHECK BCM INPUT SIGNAL

1. Connect the combination switch.

2. Turn ON any switch in the system that is malfunctioning.

3. Check voltage between BCM harness connector and ground.

Is the measurement normal when any of the switches is turned ON? YES >> Replace BCM. Refer to BCS-96, "Removal and Installation".

NO >> Replace the combination switch. Refer to WW-121, "Removal and Installation".

Special Repair Requirement

1. REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to BCS-6, "CONFIGURATION (BCM) : Special Repair Requirement".

>> Work End.

Power supply and ground circuit

Diagnosis Procedure 1. CHECK FUSE AND FUSIBLE LINK Check if the following BCM fuse or fusible link are blown. Is the fuse or fusible link blown? YES >> Replace the blown fuse or fusible li ...

Combination switch output circuit

Diagnosis Procedure 1. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN 1. Turn the ignition switch OFF. 2. Disconnect the BCM and combination switch. 3. Check continuity between BCM harness connect ...

Other materials:

Cold weather driving
Freeing a frozen door lock To prevent a door lock from freezing, apply de-icer through the key hole. If the lock becomes frozen, heat the key before inserting it into the key hole or use the remote keyless entry function on the Intelligent Key. Antifreeze In the winter when it is anticipated that th ...

Heater and air conditioner (manual) (if so equipped)
Fan speed control dial Heated seat switches (if so equipped) Front defroster button Rear window and outside mirror (if so equipped) defroster switch Air recirculation button MAX A/C / temperature control dial Air flow control buttons A/C (air conditioner) button WARNING The air ...

Windshield wiper blades
Cleaning If your windshield is not clear after using the windshield-washer or if a wiper blade chatters when running, wax or other material may be on the blade or windshield. Clean the outside of the windshield with a washer fluid or a mild detergent. Your windshield is clean if beads do not form w ...