Theft Deterrent System Security Indicator Light Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SECURITY INDICATOR)

CHECK WIRE HARNESS (MULTI-DISPLAY - COWL SIDE JUNCTION BLOCK RH (MULTIPLEX NETWORK BODY ECU))

CHECK OPERATION OF MULTI-DISPLAY WITH NEW OR NORMALLY FUNCTIONING MULTI-DISPLAY

DESCRIPTION

1. 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 cowl side junction block RH (multiplex network body ECU) causes the security indicator to illuminate.
   

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the indicator illuminates.
   
   

   Multiplex network body ECU:

   Item	Test Details	Diagnostic Note
   Security Indic	Security indicator ON/OFF	-

   OK:

   Security indicator illuminates.
   

1. Disconnect the L48 multi-display connector.
   

2. Disconnect the L67 ECU connector.
   

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

   Standard resistance:

   Tester Connection	Specified Condition
   L48-5 (LP) - L67-24 (IND)	Below 1 Ω

1. Temporarily replace the multi-display with a new or normally functioning multi-display.
   

2. Check the security indicator operation.
   

   OK:

   Security indicator operates normally.