B2604

B2604 PNP SWITCH

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. Refer to "BCM : DTC Logic" Security System.
- If DTC B2604 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to "BCM : DTC Logic" Security System.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Start the engine under the following conditions and wait for at least 1 second.
-Selector lever is in the P or N position
-Do not depress the brake pedal
2.Check "Self diagnostic result" with CONSULT.
Is DTC detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK DTC WITH TCM

Check "Self diagnostic result" with CONSULT. Refer to "DTC Index" Testing and Inspection.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace the malfunctioning parts.

2. CHECK TRANSMISSION RANGE SWITCH CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect TCM connector and BCM connector.
3.Check continuity between TCM harness connector and BCM harness connector.





4.Check continuity between TCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness or connector.

3. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- INSPECTION END