B2601

B2601 SHIFT POSITION





Description
BCM confirms the shift position with the following 4 signals.
- Selector lever
- P/N position 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. Security System Intelligent Key System.
- If DTC B2601 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Security System Intelligent Key System.
- If DTC B2601 is displayed with DTC B2603, first perform the trouble diagnosis for DTC B2603. B2603.






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 SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK A/T SHIFT SELECTOR (DETENTION SWITCH) 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 (DETENTION SWITCH) POWER SUPPLY CIRCUIT
1. Disconnect BCM connector M122.
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.
3.CHECK A/T SHIFT SELECTOR (DETENTION SWITCH) CIRCUIT (BCM)
1. Disconnect BCM connector M122 and IPDM E/R connector E6.
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.
4.CHECK A/T SHIFT SELECTOR (DETENTION SWITCH) 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.
5.CHECK A/T SHIFT SELECTOR (DETENTION SWITCH)
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 6.
NO - Replace A/T shift selector. Removal And Installation (VQ35HR) or Removal And Installation, "Removal and Installation" (VK50VE).
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. Removal And Installation (VQ35HR) or Removal And Installation, "Removal and Installation" (VK50VE).