Telescopic Sensor

TELESCOPIC SENSOR





Component Function Check
1.CHECK FUNCTION
1. Select "TELESCO PULSE" in "Data monitor" mode with CONSULT-III.
2. Check telescopic sensor signal under the following conditions.





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




Diagnosis Procedure
1.CHECK TELESCOPIC SENSOR SIGNAL
1. Turn ignition switch ON.
2. Check voltage signal between driver seat control unit connector and ground with oscilloscope.





Is the inspection result normal?
YES - Replace driver seat control unit.
NO - GO TO 2.
2.CHECK TELESCOPIC SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and telescopic motor connector.
3. Check continuity between driver seat control unit harness connector and telescopic motor harness connector.





4. 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 or connector.
3.CHECK TELESCOPIC SENSOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between telescopic motor harness connector and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - GO TO 4.
4.CHECK TELESCOPIC SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit connector.
3. Check continuity between automatic drive positioner control unit harness connector and telescopic motor harness connector.





4. Check continuity between automatic drive positioner control unit harness connector and ground.





Is the inspection result normal?
YES - Replace automatic drive positioner control unit.
NO - Repair or replace harness or connector.
5.CHECK TELESCOPIC SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit connector.
3. Check continuity between automatic drive positioner control unit harness connector and telescopic motor harness connector.





4. Check continuity between automatic drive positioner control unit harness connector and ground.





Is the inspection result normal?
YES - Replace telescopic motor.
NO - Repair or replace harness or connector.