Diagnosis Procedure

SLIDING SENSOR


Description

- The sliding sensor is installed to the power seat frame assembly.
- The pulse signal is input to the driver seat control unit when sliding is performed.
- The driver seat control unit counts the pulse and calculates the sliding amount of the seat.




SLIDING SENSOR


Diagnosis Procedure

1. CHECK SLIDING SENSOR SIGNAL





1. Turn ignition switch OFF.
2. Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.





Is the inspection result normal?
YES - GO TO 4
NO - GO TO 2
2. CHECK SLIDING SENSOR CIRCUITS





1. Disconnect driver seat control unit and sliding motor LH.
2. Check continuity between driver seat control unit harness connector and sliding motor LH 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 SEAT OPERATION
1. Connect driver seat control unit and sliding motor LH.
2. Check seat operation (except sliding operation) with memory function.
Is the inspection result normal?
YES - Replace sliding motor LH. (Built in power seat frame assembly). Refer to Disassembly and Assembly.
NO - Replace driver seat control unit. Refer to Driver Seat Control Unit.
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.