Nissan Maxima Service and Repair Manual: 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.

Nissan Maxima. CHECK FUNCTION

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.

Nissan Maxima. CHECK TELESCOPIC SENSOR SIGNAL

2. CHECK TELESCOPIC SENSOR CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect driver seat control unit and telescopic motor.
  3. Check continuity between driver seat control unit harness connector and telescopic motor harness connector.

Nissan Maxima. CHECK TELESCOPIC SENSOR CIRCUIT

  1. Check continuity between driver seat control unit harness connector and ground.

Nissan Maxima. CHECK TELESCOPIC SENSOR CIRCUIT

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. 

Nissan Maxima. CHECK TELESCOPIC SENSOR POWER SUPPLY

4. CHECK TELESCOPIC SENSOR POWER SUPPLY CIRCUIT

Nissan Maxima.  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 connect

Nissan Maxima.  CHECK TELESCOPIC SENSOR POWER SUPPLY CIRCUIT

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

Nissan Maxima.  CHECK TELESCOPIC SENSOR POWER SUPPLY CIRCUIT

5. CHECK TELESCOPIC SENSOR GROUND CIRCUIT

Nissan Maxima. 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.

Nissan Maxima. CHECK TELESCOPIC SENSOR GROUND CIRCUIT

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