B2601

B2601 SHIFT POSITION





Description
BCM confirms the shift position with the following 4 signals.
- Selector lever
- Park/neutral 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. Refer to Security System.
- If DTC B2601 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to Security System.






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




Diagnosis Procedure
1.CHECK CONTROL DEVICE POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect control device (detention switch) connector.
3. Check voltage between control device (detention switch) harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK CONTROL DEVICE POWER SUPPLY CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between control device (detention switch) harness connector and BCM harness connector.





3. Check continuity between control device (detention switch) harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Refer to Removal and Installation.
NO - Repair or replace harness.
3.CHECK CONTROL DEVICE CIRCUIT (BCM)
1. Disconnect BCM connector and IPDM E/R connector.
2. Check continuity between control device (detention switch) harness connector and BCM harness connector.





3. Check continuity between control device (detention switch) harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK CONTROL DEVICE CIRCUIT (IPDM E/R)
Check continuity between control device (detention switch) harness connector and IPDM E/R harness connector.





Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace harness.
5.CHECK CONTROL DEVICE (DETENTION SWITCH)
Refer to B2601.
Is the inspection result normal?
YES - GO TO 6.
NO - Replace control device. Refer to Removal And Installation (2WD) or Removal And Installation (AWD).
6.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
- INSPECTION END




Component Inspection
1.CHECK CONTROL DEVICE (DETENTION SWITCH)
1. Turn ignition switch OFF.
2. Disconnect control device connector.
3. Check continuity between control device (detention switch) terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace control device. Refer to Removal And Installation (2WD) or Removal And Installation (AWD).