Diagnosis Procedure

TILT SENSOR

Description

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

TILT SENSOR

Diagnosis Procedure

Regarding Wiring Diagram information, Driver Seat Control Unit.
1. CHECK TILT 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. Driver Seat Control Unit.
NO - GO TO 2
2. CHECK TILT SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and tilt motor.
3. Check continuity between driver seat control unit harness connector and tilt 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 TILT SENSOR POWER SUPPLY

1. Connect driver seat control unit.
2. Turn ignition switch ON.
3. Check voltage between tilt motor harness connector and ground.

Is the inspection result normal?
YES - GO TO 5
NO - GO TO 4
4. CHECK TILT 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 tilt 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. Automatic Drive Positioner Control Unit.
NO - Repair or replace harness or connector.
5. CHECK TILT SENSOR GROUND CIRCUIT

Is the inspection result normal?
YES - Replace tilt motor. Removal And Installation.
NO - Repair or replace harness.