B2604

B2604 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 B2604 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. With Intelligent Key System.
- If DTC B2604 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. With Intelligent Key System.






DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions and wait 1 second or more.
- Selector lever is in the P or N position
- Do not depress brake pedal
2. Check "Self-diagnosis result" using CONSULT-III.
Is DTC detected?
YES - Go to B2604.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect transmission range switch connector.
3. Turn ignition switch ON.
4. Check voltage between transmission range switch harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between transmission range switch harness connector and IPDM E/R harness connector.





4. Check continuity between transmission range switch harness connector and ground.





Is the inspection result normal?
YES - Replace IPDM E/R. With I-Key.
NO - Repair or replace harness.
3.CHECK BCM INPUT SIGNAL
1. Turn ignition switch OFF.
2. Connect transmission range switch connector.
3. Turn ignition switch ON.
4. Check voltage between BCM harness connector and ground.





Is the inspection result normal?
YES - Replace BCM. Removal And Installation.
NO - GO TO 4.
4.CHECK BCM INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect transmission range switch connector.
3. Check continuity between transmission range switch harness connector and BCM harness connector.





4. Check continuity between transmission range switch harness connector and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - Repair or replace harness.
5.CHECK TRANSMISSION RANGE SWITCH
B2604.
Is the inspection result normal?
YES - GO TO 6.
NO - Replace transaxle assembly. Exploded View.
6.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END




Component Inspection
1.CHECK TRANSMISSION RANGE SWITCH
1. Turn ignition switch OFF.
2. Disconnect transmission range switch connector.
3. Check continuity between transmission range switch terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace transaxle assembly. Exploded View.