Detention Switch

DETENTION SWITCH

Description

Detention switch is installed on A/T shift selector. It is turned OFF when the Selector lever is in P position. The driver seat control unit judges that the Selector lever is in P position if continuity does not exist in this circuit.


Component Function Check


1. CHECK FUNCTION

1.Turn ignition switch ON.
2.Select "DETENT SW" signal in "Data monitor" mode with CONSULT.
3.Check detention switch signal under the following conditions.





Is the indication normal?
YES- INSPECTION END
NO- Perform diagnosis procedure. Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. CHECK DTC WITH "BCM"

Check "Self Diagnostic Result" for BCM with CONSULT.
Is the either DTC B2601, B2602, B2603, B2604 or B2605 detected?
YES- Check the DTC. Refer to "DTC Index" Testing and Inspection.
NO- GO TO 2.

2. CHECK DETENTION SWITCH INPUT SIGNAL

1.Turn ignition switch OFF.
2.Disconnect A/T shift selector harness connector.
3.Turn ignition switch ON.
4.Check voltage between A/T shift selector harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 3.

3. CHECK DETENTION SWITCH CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect driver seat control unit.
3.Check continuity between driver seat control unit harness connector and A/T shift selector harness connector.





4.Check continuity between driver seat control unit harness connector and ground.





Is the inspection result normal?
YES- Replace driver seat control unit. Refer to"Removal and Installation" Removal and Installation.
NO- Repair or replace harness or connector.

4. CHECK DETENTION SWITCH

Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 5.
NO- Replace A/T shift selector. Refer to "Removal and Installation" Removal and Installation.

5. CHECK INTERMITTENT INCIDENT

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


Component Inspection


1. CHECK DETENTION SWITCH

1.Turn ignition switch OFF.
2.Disconnect A/T shift selector connector.
3.Check A/T shift selector terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace A/T shift selector. Refer to "Removal and Installation" Removal and Installation.