AUTOMATIC TRANSMISSION SYSTEM (for 2KD-FTV) ECU Power Source Circuit

DESCRIPTION

When the ignition switch is turned to ON, battery voltage is applied to terminal IG2 of the TCM.

WIRING DIAGRAM

A01DYHUE14

INSPECTION PROCEDURE

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. INSPECT IGNITION SWITCH


    1. A01DY3JE01
      Text in Illustration
      *a

      Component without harness connected

      (Ignition switch)

      Disconnect the ignition switch connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      5 (AM2) - 6 (IG2) LOCK 10 kΩ or higher
      5 (AM2) - 6 (IG2) ON Below 1 Ω

    NG

    REPLACE IGNITION SWITCH

    OK

  2. CHECK HARNESS AND CONNECTOR (TCM - BODY GROUND)


    1. A01E22VE35
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to TCM)

      Disconnect the TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T19-1 (E1) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK TCM (TCM - BATTERY)


    1. Turn the ignition switch to ON.

    2. A01E1MSE29
      Text in Illustration
      *a

      Component with harness connected

      (TCM)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      T38-6 (IG2) - T19-1 (E1) Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE TCM