Diagnosis Procedure

DETENTION SWITCH


Description

Park position switch is installed on A/T device. 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.





DETENTION SWITCH


Diagnosis Procedure

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 device.
3. Check continuity between driver seat control unit harness connector (A) and A/T device 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
Refer to Intermittent Incident.
Is the inspection result normal?
YES - Replace driver seat control unit. Refer to Driver Seat Control Unit.
NO - Repair or replace the malfunctioning part.