Nissan Versa

 Sedan Service Manual

Electrical & power control » Power control system (PCS) » B2618 BCM
Diagnosis Procedure

Regarding Wiring Diagram information, refer to PCS "Wiring Diagram".

1.CHECK IGNITION RELAY-1 CONTROL SIGNAL

Check voltage between BCM harness connector and ground.           

Is the inspection result normal?

YES >> Replace BCM. Refer to BCS "Removal and Installation".

NO >> GO TO 2.

2.CHECK IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector and IPDM E/R.

3. Check continuity between BCM harness connector and IPDM E/R harness connector.

4. Check continuity between BCM harness connector and ground.       

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace harness.

3.CHECK VOLTAGE OF IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT (IPDM E/R SIDE)

1. Connect IPDM E/R connector.

2. Check voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES >> Replace BCM. Refer to BCS "Removal and Installation".

NO >> Replace IPDM E/R.

DTC Logic

Diagnosis Procedure