Telescoping Wheel Position Sensor: Testing and Inspection

TELESCOPIC SENSOR





Description
- The telescopic sensor is installed to the steering column assembly.
- The resistance of telescopic sensor changes according to the forward/backward position of steering column.
- The terminal voltage of automatic drive positioner control unit changes according to a change of telescopic sensor resistance. Automatic drive positioner control unit calculates the telescopic position from the voltage.




Component Function Check
1.CHECK FUNCTION
1. Turn ignition switch ON.
2. Select "TELESCO SEN" in the "Data monitor" mode using CONSULT-III.
3. Check the tilt 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 automatic drive positioner control unit harness connector and ground.





Is the inspection result normal?
YES - Replace automatic drive positioner control unit. Removal And Installation.
NO - GO TO 2.
2.CHECK TELESCOPIC SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and tilt & telescopic sensor connector.
3. Check continuity between automatic drive positioner control unit harness connector and tilt & telescopic sensor harness connector.





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





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK TELESCOPIC SENSOR POWER SUPPLY
1. Connect automatic drive positioner control unit connector.
2. Turn ignition switch ON.
3. Check voltage between tilt & telescopic sensor 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, door mirror (driver side) connector and door mirror (passenger side) connector.
3. Check continuity between automatic drive positioner control unit harness connector and tilt & telescopic sensor 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. Removal And Installation.
NO - Repair or replace harness.
5.CHECK TELESCOPIC SENSOR GROUND CIRCUIT 1
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 tilt & telescopic sensor harness connector.





Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace harness.
6.CHECK TELESCOPIC SENSOR GROUND CIRCUIT 2
1. Connect automatic drive positioner control unit connector.
2. Check continuity between automatic drive control unit harness connector and ground.





Is the inspection result normal?
YES - Replace tilt & telescopic sensor (Built in steering column assembly). Exploded View Removal And Installation, "WITHOUT
ELECTRIC MOTOR : Exploded View".
NO - Replace automatic drive positioner control unit. Removal And Installation.