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 disarmed 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 armed 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 main body ECU RH (cowl side junction block RH) causes the security indicator to be illuminated.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR)

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

Main Body





OK:

Security indicator illuminates.

OK -- REPLACE MAIN BODY ECU RH
NG -- Continue to next step.

2. CHECK WIRE HARNESS (MULTI-DISPLAY - MAIN BODY ECU RH [COWL SIDE JUNCTION BLOCK RH])

(a) Disconnect the K102 multi-display connector.

(b) Disconnect the K67 ECU connector.

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

Standard resistance:





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

3. REPLACE MULTI-DISPLAY WITH ANOTHER AND CHECK OPERATION

(a) Temporarily replace the multi-display with a new or normally functioning one.

(b) Check the security indicator operation.

OK:

Security indicator operates normally.

NG -- REPLACE MAIN BODY ECU RH

OK -- END (MULTI-DISPLAY IS FAULTY)