Pedal Adjusting Switch

PEDAL ADJUSTING SWITCH





Description
Pedal adjusting switch is on the instrument panel. The operation signal is input to the driver seat control unit when the pedal adjusting switch is operated. The pedal adjusting switch signal is sent to the automatic drive positioner control unit via UART communication.




Component Function Check
1. CHECK FUNCTION
1. Select "PEDAL SW-FR", "PEDAL SW-RR" in "Data monitor" mode with CONSULT-III.
2. Check pedal adjusting 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 PEDAL ADJUSTING SWITCH SIGNAL





1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit harness connector and ground.






Is the inspection result normal?
YES - GO TO 5
NO - GO TO 2
2. CHECK PEDAL ADJUSTING SWITCH CIRCUIT





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





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





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness.
3. CHECK DRIVER SEAT CONTROL UNIT OUTPUT





1. Connect the driver seat control unit.
2. Turn ignition switch OFF.
3. Check voltage between driver seat control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Replace driver seat control unit. Service and Repair.
4. CHECK PEDAL ADJUSTING SWITCH
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 5
NO - Replace pedal adjusting switch. Exploded View.
5. CHECK PEDAL ADJUSTING SWITCH GROUND CIRCUIT





Check continuity between pedal adjusting switch connector M96 terminal 1 and ground.





Is the inspection result normal?
YES - GO TO 6
NO - Repair or replace harness.
6. 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.




Component Inspection
1. CHECK PEDAL ADJUSTING SWITCH





1. Turn ignition switch OFF.
2. Disconnect pedal adjusting switch.
3. Check continuity between pedal adjusting switch terminals.






Is the inspection result normal?
YES - Inspection End.
NO - Replace pedal adjusting switch. Exploded View.