Security Indicator Light Circuit

THEFT DETERRENT: THEFT DETERRENT SYSTEM: Security Indicator Light Circuit
- Security Indicator Light Circuit

DESCRIPTION

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

When the theft deterrent system is in the arming preparation state and alarm sounding state, the theft warning ECU (theft deterrent ECU) causes the security indicator to be illuminated.

WIRING DIAGRAM





INSEPCTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR)

(a) Select the Active Test, use the Techstream (with CAN VIM) to generate a control command, and then check that the indicator illuminates.

Theft Deterrent





OK:

Security indicator operates normally.

OK -- REPLACE THEFT WARNING ECU ASSEMBLY
NG -- Continue to next step.

2. INSPECT OUTER MIRROR SWITCH ASSEMBLY (SECURITY INDICATOR)

(a) Remove the outer mirror switch.





(b) Apply battery voltage between the terminals of the indicator, and check the lighting condition of the security indicator.

NOTICE:
* If the positive (+) lead and the negative (-) lead are incorrectly connected, the security indicator does not illuminate.
* A voltage of more than 12 V will damage the security indicator.
* If the voltage is too low, the security indicator will not illuminate.

OK:





NG -- REPLACE OUTER MIRROR SWITCH ASSEMBLY
OK -- Continue to next step.

3. CHECK WIRE HARNESS (OUTER MIRROR SWITCH - BODY GROUND)

(a) Disconnect the M4 switch connector.





(b) Measure the resistance of the wire harness side connector.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

4. CHECK WIRE HARNESS (THEFT WARNING ECU - OUTER MIRROR SWITCH)

(a) Disconnect the T7 ECU connector.

(b) Disconnect the M4 switch connector.





(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE