Diesel Data: Automotive Repair

Security Indicator Circuit

SECURITY INDICATOR CIRCUIT

CIRCUIT DESCRIPTION

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

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

When the theft deterrent system is in the arming preparation state or alarm sounding state, the multiplex network body ECU causes the security indicator to be illuminated.

Wiring Diagram:






Step 1 - 2:




Step 3:




INSPECTION PROCEDURE