THEFT DETERRENT SYSTEM Security Indicator Light Circuit

DESCRIPTION

When the theft deterrent system is in the disarmed state, the security indicator light will flash continuously if the immobiliser system is set, or not illuminate if the immobiliser system is not set.

When the theft deterrent system is in the armed state, the immobiliser system is automatically set and the security indicator light will flash continuously.

When the theft deterrent system is in the arming preparation state or alarm sounding state, the theft warning ECU causes the security indicator light to illuminate.

WIRING DIAGRAM

A01J5CUE03

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT SECURITY INDICATOR LIGHT ASSEMBLY

    A01J4R6

    1. Remove the security indicator light.

    2. Apply battery voltage between the terminals of the indicator, and check the illumination of the security indicator light.

      OK
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 2

      Battery negative (-) → Terminal 1

      		 Illuminates

      Note


      • If the positive (+) lead and the negative (-) lead are incorrectly connected, the security indicator light will not illuminate.

      • If the voltage is too low, the security indicator light will not illuminate.


    NG

    REPLACE SECURITY INDICATOR LIGHT ASSEMBLY

    OK

  2. CHECK WIRE HARNESS (SECURITY INDICATOR LIGHT - THEFT WARNING ECU AND BODY GROUND)

    A01J3HBE02

    1. Disconnect the S10 indicator connector.

    2. Disconnect the T16 ECU connector.

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

      Standard resistance
      Tester Connection Specified Condition
      T16-27 (IND) - S10-2 (LP) Below 1 Ω
      T16-27 (IND) or S10-2 (LP) - Body ground 10 kΩ or higher
      S10-1 (E) - Body ground Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE