THEFT DETERRENT SYSTEM Security Indicator Light Circuit

DESCRIPTION

When the theft deterrent system is in the disarmed state, the security indicator light does not illuminate. When the theft deterrent system is in the armed state, the body ECU blinks the security indicator light continuously.

When the theft deterrent system is in the arming preparation state or alarm sounding state, the body ECU illuminates the security indicator light.

WIRING DIAGRAM

B0024GAE03

CAUTION / NOTICE / HINT

Note


  • w/ Door Control Battery:

    As the door control battery is installed between the vehicle battery and body ECU, first perform the inspections to confirm that there are no malfunctions in the power source circuit for the body ECU before performing this troubleshooting procedure.

    Click here

  • w/ Automatic Light Control System:

    If the body ECU has been replaced, it is necessary to initialize the body ECU.

    Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (THEFT WARNING INDICATOR LIGHT ASSEMBLY - BODY ECU AND BODY GROUND)


    1. Disconnect the H2 theft warning indicator light assembly connector.

    2. Disconnect the G27 body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H2-2 (LP) - G27-17 (IND) Always Below 1 Ω
      H2-2 (LP) - Body ground Always 10 kΩ or higher
      G27-17 (IND) - Body ground Always 10 kΩ or higher
      H2-6 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT THEFT WARNING INDICATOR LIGHT ASSEMBLY


    1. Remove the theft warning indicator light assembly.

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    2. Inspect the theft warning indicator light assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE THEFT WARNING INDICATOR LIGHT ASSEMBLY Click here