Telescoping Wheel Position Sensor: Testing and Inspection

TELESCOPIC SENSOR

Description

- The telescopic sensor is installed to the steering column assembly.
- The pulse signal is input to the driver seat control unit when telescopic is performed.
- The driver seat control unit counts the pulse and calculates the telescopic amount of the steering column.


Component Function Check


1. CHECK FUNCTION

1.Select "TELESCO PULSE" in "DATA MONITOR" mode with CONSULT.
2.Check telescopic sensor signal under the following conditions.





Is the inspection result normal?
YES- Inspection End.
NO- Perform diagnosis procedure. Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Electrical Diagrams.

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. Refer to "Removal and Installation" Service and Repair.
NO- GO TO 2.

2. CHECK TELESCOPIC SENSOR CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect driver seat control unit and telescopic motor.
Revision: March 20122013 Infiniti JX
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.

3. CHECK TELESCOPIC SENSOR POWER SUPPLY

1.Connect driver seat control unit.
2.Turn ignition switch ON.
3.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.
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. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness.

5. CHECK TELESCOPIC SENSOR GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect automatic drive positioner control unit.
3.Check continuity between automatic drive positioner control unit harness connector and telescopic motor harness connector.
Revision: March 20122013 Infiniti JX





Is the inspection result normal?
YES- Replace telescopic motor. Refer to "Exploded View" Exploded View.
NO- Repair or replace harness.
Revision: March 20122013 Infiniti JX