Detention Switch

DETENTION SWITCH





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




Component Function Check
1. CHECK FUNCTION
1. Select "DETENT SW" signal in "Data monitor" mode with CONSULT-III.
2. Check park position switch signal under the following conditions.





Is the indication normal?
YES - Inspection End.
NO - Perform diagnosis procedure. SEE Diagnosis Procedure.




Diagnosis Procedure
Regarding Wiring Diagram information, Electrical Diagrams.
1. CHECK DTC WITH "BCM"
Check "Self Diagnostic Result" for BCM with CONSULT-III.
Is any other DTC detected?
YES - Check the DTC.
NO - GO TO 2
2. CHECK PARK POSITION SWITCH INPUT SIGNAL





1. Turn ignition switch ON.
2. Mechanical key must be removed from the key switch.
3. Check voltage between driver seat control unit harness connector and ground.






Is the inspection result normal?
YES - GO TO 4
NO - GO TO 3
3. CHECK PARK POSITION SWITCH CIRCUIT





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





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





Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace harness.
4. CHECK INTERMITTENT INCIDENT
Intermittent Incident.
Is the inspection result normal?
YES - Replace driver seat control unit. Service and Repair.
NO - Repair or replace the malfunctioning part.