ENGINE IMMOBILISER SYSTEM Power Source Circuit

DESCRIPTION

This circuit provides power to operate the transponder key ECU assembly.

WIRING DIAGRAM

A0138CYE01

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT FUSE (AM2, ECU-B, IG2)


    1. Remove the AM2 fuse from the engine room R/B and J/B.

    2. Remove the ECU-B and IG2 fuses from the driver side J/B.

    3. Measure the resistance.

      Standard Resistance
      Below 1 Ω

    NG

    REPLACE FUSE

    OK

  2. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - BODY GROUND)


    1. A0137LUE01

      Disconnect the C30 transponder key ECU assembly connector.

    2. Measure the voltage of the wire harness side connector.

      Standard Voltage
      Tester Connection Condition Specified Condition
      C30-2 (IG) - Body ground Ignition switch: OFF to ON 0 V - 10 to 14 V
      C30-1 (+B) - Body ground Always 10 to 14 V

    3. Measure the resistance of the wire harness side connector.

      Standard Resistance
      Tester Connection Condition Specified Condition
      C30-16 (GND) - Body ground Always Below 1 Ω

    4. Reconnect the transponder key ECU assembly connector.


    NG

    REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY