Diesel Data: Automotive Repair

Security Indicator Light Circuit

SECURITY INDICATOR LIGHT CIRCUIT

CIRCUIT DESCRIPTION

When the engine immobilizer system is preparing to set, this circuit lights up the security indicator light.

When the system has been set, it continually turns the security indicator light ON for 0.2 seconds and turns it OFF for 1.8 seconds, thus blinking the security indicator light.

Wiring Diagram:






Step 1:




Step 2:




INSPECTION PROCEDURE