ELECTRONIC POWER STEERING SYSTEM TC and CG Terminal Circuit

DESCRIPTION

When terminals TC and CG of the DLC3 are connected, the power steering ECU assembly displays the DTC.

WIRING DIAGRAM

A0136VCE01

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT DLC3 TERMINAL VOLTAGE (TC TERMINAL)

    A0136XBE24

    1. Turn the ignition switch ON.

    2. Measure the voltage.

      Standard Voltage
      Tester Connection Specified Condition
      C16-13 (TS) - C16-4 (CG) 10 to 14 V

    OK

    CHECK HARNESS AND CONNECTOR (DLC3 - POWER STEERING ECU ASSEMBLY) Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

    A0136XBE14

    1. Measure the resistance.

      Standard Resistance
      Tester Connection Specified Condition
      C16-4 (CG) - Body ground Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (DLC3 - POWER STEERING ECU ASSEMBLY)

    A0138SNE02

    1. Disconnect the power steering ECU connector C23.

    2. Measure the resistance.

      Standard Resistance
      Tester Connection Specified Condition
      C23-4 (TC) - C16-13 (TC) Below 1 Ω
      C23-4 (TC) - Body ground 10 kΩ or higher

    3. Reconnect the connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POWER STEERING ECU ASSEMBLY