B2601

B2601 SHIFT POSITION

Description

BCM confirms the shift position with the following 4 signals.
- Selector lever
- 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. Refer to
Security System.
- If DTC B2601 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
Security System.
- If DTC B2601 is displayed with DTC B2603, first perform the trouble diagnosis for DTC B2603. Refer to
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.
Is DTC detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. 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 3.
NO- GO TO 2.

2. 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- Replace BCM. Removal And Installation.
NO- Repair or replace harness or connector.

3. CHECK A/T SHIFT SELECTOR CIRCUIT (BCM)

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 4.
NO- Repair or replace harness or connector.

4. CHECK A/T SHIFT SELECTOR CIRCUIT (IPDM E/R)

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





2.Check continuity between A/T 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 A/T SHIFT SELECTOR (DETENTION SWITCH)

.
Is the inspection result normal?
YES- GO TO 6.
NO- Replace A/T shift selector. Removal And Installation.

6. 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 (detention switch). Removal And Installation.