AUTOMATIC TRANSMISSION SYSTEM(for 1VD-FTV) Pattern Select Switch Power Mode Circuit

DESCRIPTION

The ECM memory contains the programs for the normal and power shift patterns and lock-up pattern.

By following the programs corresponding to the signals from the PWR switch, the park/neutral position switch and other various sensors, the ECM switches the solenoid valves on and off, and controls the transmission gear change and the lock-up clutch operation.

WIRING DIAGRAM

A01X4YXE01
A01X4YXE02

CAUTION / NOTICE / HINT

When the PWR switch is pushed, switch contact is made and power mode is selected. To cancel power mode, push the PWR switch once again.

PROCEDURE


  1. INSPECT PWR SWITCH


    1. B001YZQE10
      Text in Illustration
      *a

      Component without harness connected

      (Integration Control and Panel Assembly)

      w/ Entry and Start System:

      Remove the integration control and panel assembly Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      6 (P) - 5 (E) PWR switch on Below 1 Ω
      6 (P) - 5 (E) PWR switch off 10 kΩ or higher
    3. A01X8ZTE13
      Text in Illustration
      *a

      Component without harness connected

      (Suspension Control Switch)

      w/o Entry and Start System:

      Remove the suspension control switch Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      16 (P) - 20 (E) PWR switch on Below 1 Ω
      16 (P) - 20 (E) PWR switch off 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (w/ Entry and Start System) B
      NG (w/o Entry and Start System) C

    B

    REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY Click here

    C

    REPLACE SUSPENSION CONTROL SWITCH Click here

    A

  2. CHECK HARNESS AND CONNECTOR (PWR SWITCH - BODY GROUND)


    1. A01X7ZEE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Integration Control and Panel Assembly)

      w/ Entry and Start System:

      Disconnect the integration control and panel assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      V9-5 (E) - Body ground Always Below 1 Ω
    3. A01X6ZIE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Suspension Control Switch)

      w/o Entry and Start System:

      Disconnect the suspension control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      V4-20 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (PWR SWITCH - ECM)


    1. A01X9QDE01
      Text in Illustration
      A for LHD
      B for RHD
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

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

      Standard Resistance
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-21 (PWR) - Body ground PWR switch on Below 1 Ω
      A38-21 (PWR) - Body ground PWR switch off 10 kΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      A52-21 (PWR) - Body ground PWR switch on Below 1 Ω
      A52-21 (PWR) - Body ground PWR switch off 10 kΩ or higher

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR