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. 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-III.
Is DTC detected?
YES - Go to SEE Diagnosis Procedure.
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-III.
Is DTC detected?
YES - Go to SEE Diagnosis Procedure.
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-III.
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-III.
For initialization and registration procedures, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.
- 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-III.
For initialization and registration procedures, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.
- 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)
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 11.
NO - Replace A/T shift selector. Removal And Installation (2WD) or Removal And Installation, "AWD : 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 : Removal and Installation" (AWD).