Toyota
Nissan Versa
 Sedan Service Manual
Body exterior, doors, roof & vehicle security » Security control system (SEC) » B2603 Shift position
Diagnosis Procedure

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

1.INSPECTION START

Perform inspection in accordance with procedure that confirms DTC.

Which procedure confirms DTC?

DTC confirmation procedure 1>>GO TO 2.

DTC confirmation procedure 2>>GO TO 8.

2.CHECK FUSE

1. Turn power switch OFF.

2. Check that the following fuse in IPDM E/R is not blown.               

Is the inspection result normal?

YES >> GO TO 3.

NO >> Replace the blown fuse after repairing the cause of blowing.

3.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY

1. Disconnect transmission range switch connector.

2. Turn ignition switch ON.

3. Check voltage between transmission range switch harness connector and ground.       

Is the inspection result normal?

YES >> GO TO 5.

NO >> GO TO 4.

4.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R connector.

3. Check continuity between transmission range switch harness connector and IPDM E/R harness connector.

Is the inspection result normal?

YES >> Replace IPDM E/R. Refer to PCS "Removal and Installation".

NO >> Repair or replace harness.

5.CHECK BCM INPUT SIGNAL

1. Turn ignition switch OFF.

2. Connect transmission range switch harness connector.

3. Turn ignition switch ON.

4. Check voltage between BCM harness connector and ground.           

Is the inspection result normal?

YES >> GO TO 13.

NO >> GO TO 6.

6.CHECK BCM INPUT SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect transmission range switch connector.

3. Disconnect BCM connector.

4. Check continuity between transmission range switch harness connector and BCM harness connector.

Is the inspection result normal?

YES >> GO TO 7.

NO >> Repair or replace harness.

7.CHECK TRANSMISSION RANGE SWITCH

Refer to SEC "Component Inspection (Transmission Range Switch)".

Is the inspection result normal?

YES >> GO TO 12.

NO >> Replace transmission range switch.

8.CHECK CVT SHIFT SELECTOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect CVT shift selector (park position switch) connector.

3. Check voltage between CVT shift selector (park position switch) harness connector and ground.

Is the inspection result normal?

YES >> GO TO 10.

NO >> GO TO 9.

9.CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between CVT shift selector (park position switch) harness connector and BCM harness connector.

3. Check continuity between CVT shift selector (park position switch) harness connector and ground.

Is the inspection result normal?

YES >> GO TO 12.

NO >> Repair or replace harness.

10.CHECK CVT SHIFT SELECTOR CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between CVT shift selector (park position switch) harness connector and BCM harness connector.                    

3. Check continuity between CVT shift selector (park position switch) harness connector and ground.

Is the inspection result normal?

YES >> GO TO 11.

NO >> Repair or replace harness.

11.CHECK CVT SHIFT SELECTOR (PARK POSITION SWITCH)

Refer to SEC "Component Inspection [CVT Shift Selector (Park Position Switch)]".

Is the inspection result normal?

YES >> GO TO 13.

NO >> Replace CVT shift selector. Refer to TM "Removal and Installation".

12.CHECK INTERMITTENT INCIDENT

Refer to GI "Intermittent Incident".

>> Inspection End.

13.REPLACE BCM

1. Replace BCM. Refer to BCS "Removal and Installation".

2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.

>> Inspection End.

    More about «B2603 Shift position»:

    DTC Logic

    Diagnosis Procedure

    Component Inspection (Transmission Range Switch)

    Component Inspection [CVT Shift Selector (Park Position Switch)]

    Nissan Versa Sedan Service Manual / Body exterior, doors, roof & vehicle security / Security control system (SEC) / B2603 Shift position / Diagnosis Procedure

    Nissan Versa Sedan Service Manual

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