Security Indicator

The red SECURITY lamp illuminates when the Passlock(R) data is incorrect. The BCM sends to the instrument cluster via the Class 2 serial data bus the message to turn on or off the SECURITY indicator. The SECURITY indicator turns on under either of the following conditions:
^ Any theft deterrent DTC is set.
^ The PCM VTD Fail/Enable bit is true in the last vehicle security status message received and the BCM is not in the auto-learn mode.

The SECURITY indicator flashes when the BCM detects a tamper or the PCM fuel disable time-out bit is set in the last vehicle security status message received since the ignition switch was turned to the ON position.