B2601

B2601 SHIFT POSITION





Description
BCM confirms the shift position with the following 4 signals.
- CVT shift selector (detention switch)
- Transmission range switch
- P position signal from IPDM E/R (CAN)
- P position signal from TCM (CAN)




DTC Logic

DTC DETECTION LOGIC

NOTE:
- If DTC B2601 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. SEC.
- If DTC B2601 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. SEC.
- If DTC B2601 is displayed with DTC B2603, first perform the trouble diagnosis for DTC B2603. B2605.






DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions, and wait for at least 2 seconds.
- Selector lever is in the P position.
- Do not depress the brake pedal.
2. Check "Self diagnostic result" with CONSULT-III.
Is DTC detected?
YES - Go to B2601.
NO - INSPECTION END




Diagnosis Procedure
1.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 3.
NO - GO TO 2.
2.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 - Replace BCM. Removal And Installation.
NO - Repair or replace harness or connector.
3.CHECK CVT SHIFT SELECTOR CIRCUIT (BCM)
1. Disconnect BCM connector and IPDM E/R 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 4.
NO - Repair or replace harness or connector.
4.CHECK CVT SHIFT SELECTOR CIRCUIT (IPDM E/R)
1. Check continuity between CVT shift selector (detention switch) harness connector and IPDM E/R harness connector.





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





Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace harness or connector.
5.CHECK CVT SHIFT SELECTOR (DETENTION SWITCH)
B2601.
Is the inspection result normal?
YES - GO TO 6.
NO - Replace CVT shift selector. Removal And Installation.
6.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END




Component Inspection
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.