Diagnosis Procedure
- CHECK SLIDING SENSOR SIGNAL
- Turn ignition switch ON.
- Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.
(+) (-) Condition Signal
(Reference value)Driver seat control unit Connector Terminals B601 18 Ground Seat sliding Operate Other than the above 0 or 5
Is the inspection result normal?
YES
Replace driver seat control unit. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 2 .
- CHECK SLIDING SENSOR CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit and sliding motor connector.
- Check continuity between driver seat control unit harness connector and sliding sensor harness connector.
Driver seat control unit Sliding motor Continuity Connector Terminal Connector Terminal B601 18 B604 18 Existed - Check continuity between driver seat control unit harness connector and ground.
Driver seat control unit Ground Continuity Connector Terminal B601 18 Not existed
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Repair or replace harness or connector.
- CHECK SLIDING SENSOR POWER SUPPLY
- Connect driver seat control unit connector.
- Turn ignition switch ON.
- Check voltage between sliding motor harness connector and ground.
(+) (-) Voltage (V) Sliding motor Connector Terminals B604 12 Ground 9 - 16
Is the inspection result normal?
YES
GO TO STEP 5 .
NO
GO TO STEP 4 .
- CHECK SLIDING SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit connector.
- Check continuity between driver seat control unit harness connector and sliding motor harness connector.
Driver seat control unit Sliding motor Continuity Connector Terminal Connector Terminal B601 12 B604 12 Existed - Check continuity between driver seat control unit harness connector and ground.
Driver seat control unit Ground Continuity Connector Terminal B601 12 Not existed
Is the inspection result normal?
YES
Replace driver seat control unit. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness or connector.
- CHECK SLIDING SENSOR GROUND
- Turn ignition switch OFF.
- Check continuity between sliding sensor harness connector and ground.
Sliding motor Ground Continuity Connector Terminal B604 43 Existed
Is the inspection result normal?
YES
Replace sliding motor.
NO
Repair or replace harness or connector.