B2603

B2603 SHIFT POSITION

DTC Logic


DTC DETECTION LOGIC

NOTE:
- If DTC B2603 is displayed with DTC B2601, first perform the trouble diagnosis for DTC B2601. Refer to
B2601.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE 1

1.Shift the selector lever to the P position.
2.Turn ignition switch ON and wait 1 second or more.
3.Check DTC in "Self Diagnostic Result" mode of "BCM" using CONSULT.
Is DTC detected?
YES- Go to .
NO- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE 2

1.Shift the selector lever to any position other than P, and wait 1 second or more.
2.Check DTC in "Self Diagnostic Result" mode of "BCM" using CONSULT.
Is DTC detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


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. IPDM E/R (With I-Key).
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

.
Is the inspection result normal?
YES- GO TO 12.
NO- Replace transmission range switch. Removal And Installation.

8. CHECK CVT SHIFT SELECTOR POWER SUPPLY

1.Turn ignition switch OFF.
2.Disconnect CVT shift selector (detention switch) connector.
3.Check voltage between CVT shift selector (detention 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 (detention switch) harness connector and BCM harness connector.





3.Check continuity between CVT shift selector (detention 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 (detention switch) harness connector and BCM harness connector.





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





Is the inspection result normal?
YES- GO TO 11.
NO- Repair or replace harness.

11. CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)

.
Is the inspection result normal?
YES- GO TO 13.
NO- Replace CVT shift selector. Removal And Installation.

12. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END

13. REPLACE BCM

1.Replace BCM. With Intelligent Key System.
2.Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
- INSPECTION END


Component Inspection (Transmission Range Switch)


1. CHECK TRANSMISSION RANGE SWITCH

1.Turn ignition switch OFF.
2.Disconnect transmission range switch connector.
3.Check continuity between transmission range switch terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace transmission range switch. Removal And Installation.


Component Inspection [CVT Shift Selector (Detention Switch)]


1. CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)

1.Turn ignition switch OFF.
2.Disconnect CVT shift selector connector.
3.Check continuity between CVT shift selector (detention switch) terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace CVT shift selector. Removal And Installation.