Park Position Switch

PARK POSITION SWITCH

Description

The park position switch is installed on the 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 shift selector 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.
2.Check park position switch (key lock) signal under the following conditions.





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


Diagnosis Procedure

Regarding Wiring Diagram information, [1][2]Electrical Diagrams.

1. CHECK DTC WITH "BCM"

Check "Self Diagnostic Result" for BCM with CONSULT.
Is any DTC detected?
YES- Check the DTC.
NO- GO TO 2

2. CHECK A/T SHIFT SELECTOR [PARK POSITION SWITCH (KEY LOCK)] INPUT SIGNAL

1.Turn ignition switch OFF.
2.Disconnect driver seat control unit.
3.Mechanical key must be inserted into the key switch and key lock solenoid.
4.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 A/T SHIFT SELECTOR [PARK POSITION SWITCH (KEY LOCK)] 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 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- 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.