Automatic Drive Positioner

FORWARD SWITCH

Description

Forward switch is installed on the seat back frame. Forward switch detects condition of seat back.


Component Function Check


1. CHECK FUNCTION

1.Turn ignition switch ON.
2.Select "FORWARD SW" in the "Data Monitor" mode using CONSULT.
3.Check the forward switch signal under the following condition.





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


Diagnosis Procedure


1. CHECK FORWARD SWITCH SIGNAL

1.Turn ignition switch OFF.
2.Disconnect forward switch harness connector.
3.Check voltage between forward switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. CHECK FORWARD SWITCH CIRCUIT

1.Disconnect driver seat control unit connector.
2.Check continuity between driver seat control unit harness connector and forward switch harness connector.





3.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.

3. FORWARD SWITCH GROUND CIRCUIT

Check continuity between forward switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK FORWARD SWITCH

Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 5.
NO- Replace forward switch (Built in seat back frame). Refer to "Exploded View" Exploded View.

5. CHECK INTERMITTENT INCIDENT

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


Component Inspection


1. CHECK FORWARD SWITCH

1.Turn ignition switch OFF.
2.Disconnect forward switch connector.
3.Check continuity between forward switch terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace forward switch (Built in seat back frame). Refer to "Exploded View" Exploded View.