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 the procedure that confirms DTC.
Which procedure confirms DTC?
DTC confirmation procedure 1-GO TO 2.
DTC confirmation procedure 2-GO TO 6.

2. CHECK DTC OF TCM

Check DTC in "Self Diagnostic Result" mode of "TCM" using CONSULT.
Is DTC detected?
YES- Perform the trouble diagnosis related to the detected DTC. Testing and Inspection.
NO- GO TO 3.

3. CHECK BCM INPUT SIGNAL

1.Turn ignition switch ON.
2.Check voltage between BCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 5.

4. REPLACE BCM

1.Replace BCM. Service and Repair.
2.Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
- INSPECTION END

5. CHECK BCM INPUT SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM connector.
3.Disconnect A/T assembly connector.
4.Check continuity between A/T assembly harness connector and BCM harness connector.





5.Check continuity between A/T assembly harness connector and ground.





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

6. CHECK A/T SHIFT SELECTOR POWER SUPPLY

1.Turn ignition switch OFF.
2.Disconnect A/T shift selector (detention switch) connector.
3.Check voltage between A/T shift selector (detention switch) harness connector and ground.





Is the inspection result normal?
YES- GO TO 9.
NO- GO TO 7.

7. CHECK A/T SHIFT SELECTOR POWER SUPPLY CIRCUIT

1.Disconnect BCM connector.
2.Check continuity between A/T shift selector (detention switch) harness connector and BCM harness connector.





3.Check continuity between A/T shift selector (detention switch) harness connector and ground.





Is the inspection result normal?
YES- GO TO 8.
NO- Repair or replace harness.

8. REPLACE BCM

1.Replace BCM. Service and Repair.
2.Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
- INSPECTION END

9. CHECK A/T SHIFT SELECTOR CIRCUIT

1.Disconnect BCM connector and IPDM E/R connector.
2.Check continuity between A/T shift selector (detention switch) harness connector and BCM harness connector.





3.Check continuity between A/T shift selector (detention switch) harness connector and ground.





Is the inspection result normal?
YES- GO TO 10.
NO- Repair or replace harness.

10. CHECK A/T SHIFT SELECTOR (DETENTION SWITCH)

.
Is the inspection result normal?
YES- GO TO 11.
NO- Replace A/T shift selector. Removal And Installation (2WD) or Removal And Installation (AWD).

11. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END


Component Inspection


1. CHECK A/T SHIFT SELECTOR (DETENTION SWITCH)

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





Is the inspection result normal?
YES- INSPECTION END
NO- Replace A/T shift selector. Removal And Installation (2WD), Removal And Installation (AWD).