Operation CHARM: Car repair manuals for everyone.

Security Indicator

The SECURITY indicator is controlled by the theft deterrent module. The theft deterrent module will turn the indicator on for approximately 5 seconds during engine start-up for a bulb check. If the theft deterrent module detects a fault in circuit 1073, circuit 1074 or a defective ignition key, the SECURITY indicator will flash. A solid (not flashing) SECURITY indicator is illuminated if the theft deterrent module enters shut down mode thus preventing the vehicle from starting. For more information refer to Theft Deterrent System in Electrical Diagnosis. Antitheft and Alarm Systems