POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM Tilt and Telescopic Manual Switch Circuit

DESCRIPTION

Different voltage values are sent to the multiplex tilt and telescopic ECU by operating the tilt and telescopic switch. The multiplex tilt and telescopic ECU then judges which motor and in which direction that motor should operate based on the voltage value.

WIRING DIAGRAM

A000NGDE57

PROCEDURE


  1. READ VALUE USING GTS (TILT UP/DOWN SWITCH, TELESCOPIC SHORT/LONG SWITCH)


    1. Turn the power switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the GTS on.

    5. Check the tilt and telescopic manual switch. Enter the following menus: Body Electrical / Tilt & Telescopic / Data List.

      Tilt & Telescopic
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Tilt Up Switch

      Input state of tilt up switch/

      ON or OFF

      ON: Tilt up switch activated

      OFF: Tilt up switch not activated

      		 -
      Tilt Down Switch

      Input state of tilt down switch/

      ON or OFF

      ON: Tilt down switch activated

      OFF: Tilt down switch not activated

      		 -
      Telesco Short Switch

      Input state of telescopic contract switch/

      ON or OFF

      ON: Telescopic contract switch activated

      OFF: Telescopic contract switch not activated

      		 -
      Telesco Long Switch

      Input state of telescopic extend switch/

      ON or OFF

      ON: Telescopic extend switch activated

      OFF: Telescopic extend switch not activated

      		 -
      OK
      "ON" is displayed on the GTS screen when each switch is turned on.
      "OFF" is displayed on the GTS screen when each switch is turned off.

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - TILT AND TELESCOPIC SWITCH)


    1. Disconnect the N22 multiplex tilt and telescopic ECU connector.

    2. Disconnect the N27 tilt and telescopic switch connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      N22-5 (VC) - N27-1 (VC) Always Below 1 Ω
      N22-18 (MSW) - N27-3 (MSW)
      N22-5 (VC) - Body ground 10 kΩ or higher
      N22-18 (MSW) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VC TERMINAL VOLTAGE)


    1. A000R6OE02
      Text in Illustration
      *a

      Component with harness connected

      (Multiplex Tilt and Telescopic ECU)

      Reconnect the multiplex tilt and telescopic ECU connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      N22-5 (VC) - N22-18 (MSW) Power switch on (IG) 4.9 to 5.1 V

    NG

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    OK

  4. CHECK TILT AND TELESCOPIC SWITCH


    1. A000PYIE02
      Text in Illustration
      *a

      Component without harness connected

      (Tilt and Telescopic Switch)

      Remove the tilt and telescopic switch Click here.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - 3 Tilt up 342 to 378 Ω
      Tilt down 1890.5 to 2089.5 Ω
      Telescopic contract 750.5 to 829.5 Ω
      Telescopic extend 152 to 168 Ω

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    NG

    REPLACE TILT AND TELESCOPIC SWITCH Click here