Nissan Maxima Service and Repair Manual: Lifting sensor (front)

Nissan Maxima Service and Repair Manual / Body interior / Automatic drive positioner / DTC/circuit diagnosis / Lifting sensor (front)

Description

  • The lifting sensor (front) is installed to the seat frame.
  • The pulse signal is input to the driver seat control unit when the lifting (front) is operated.
  • The driver seat control unit counts the pulse and calculates the lifting (front) amount of the seat.

Component Function Check

1.CHECK FUNCTION

  1. Select "LIFT FR PULSE" in "DATA MONITOR" mode with CONSULT.
  2. Check the lifting sensor (front) signal under the following conditions.

Nissan Maxima. .CHECK FUNCTION

Diagnosis Procedure

1. CHECK LIFTING SENSOR (FRONT) SIGNAL

  1. Turn ignition switch ON.
  2. Read the voltage signal between driver seat control unit harness connector and ground with an oscilloscope.

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) SIGNAL

2. CHECK LIFTING SENSOR (FRONT) CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect driver seat control unit and front power seat LH [lifting motor (front)].
  3. Check continuity between driver seat control unit harness connector and front power seat LH [lifting motor (front)] harness connector.

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) CIRCUIT

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

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) CIRCUIT

3. CHECK LIFTING SENSOR (FRONT) POWER SUPPLY

  1. Connect driver seat control unit.
  2. Turn ignition switch ON.
  3. Check voltage between front power seat LH [lifting motor (front)] harness connector and ground.

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) POWER SUPPLY

4. CHECK LIFTING SENSOR (FRONT) POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect driver seat control unit.
  3. 3. Check continuity between driver seat control unit harness connector and front power seat LH [lifting motor (front)] harness connector.

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) POWER SUPPLY CIRCUIT

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

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) POWER SUPPLY CIRCUIT

5. CHECK LIFTING SENSOR (FRONT) GROUND

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) GROUND

  1. Turn ignition switch OFF.
  2. Check continuity between front power seat LH [lifting motor (front)] harness connector and ground.

Nissan Maxima. CHECK LIFTING SENSOR (FRONT) GROUND

    Reclining sensor
    Description The reclining motor is installed to the seatback assembly. The pulse signal is input to the driver seat control unit when the reclining is operated. The driver seat control unit ...

    Lifting sensor (rear)
    Description The lifting sensor (rear) is installed to the seat frame. The pulse signal is input to the driver seat control unit when the lifting (rear) is operated. The driver seat control ...

    Other materials:

    Refrigerant
    Description CONNECTION OF SERVICE TOOLS AND EQUIPMENT Shut-off valve A/C service valve Recovery/recycling/recharging equipment Refrigerant container (HFC-134a) Weight scale (J-39650) Vacuum pump (J-39649) Manifold gauge set (J-39183)  Preferred (best) method  A ...

    System temporarily unavailable
    Condition A When the radar sensor picks up interference from another radar source, making it impossible to detect a vehicle ahead, the PFCW system is automatically turned off. The FEB system warning light (orange) will illuminate. Action to take When the above conditions no longer exist, th ...

    P0442 evap control system
    DTC Logic DTC DETECTION LOGIC This diagnosis detects leakage in the EVAP purge line using engine intake manifold vacuum. If pressure does not increase, the ECM will check for leakage in the line between the fuel tank and EVAP canister purge volume control solenoid valve, under the followi ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0059