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Security Indicator Inoperative

NOTE: Use this test when indicator is always on, always flashing or never on.
  1. Perform UTD SYSTEM CHECK  . Using scan tool, check communications with BCM, LDCM, RDCM and PCM modules. If scan tool can communicate with all modules, go to next step. If scan tool is unable to communicate with module(s), see appropriate article for diagnosis and repair. After repair, turn ignition off. Reconnect all components and connectors. Turn ignition on. If repair is complete, go to UTD SYSTEM CHECK  .
  2. Using scan tool, select IPC output functions and command SECURITY indicator ON and OFF. If indicator operates properly, go to next step. If indicator does not operate properly, see ANALOG INSTRUMENT PANELS - CORVETTE article.
  3. Using power door lock switches, operate locks. If locks operate properly, go to next step. If locks do not operate properly, repair power door lock system as necessary. See appropriate wiring diagram in POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS article.
  4. Close both doors. Turn ignition on. If DOOR AJAR message is not displayed, go to next step. If DOOR AJAR message is displayed, repair door ajar circuit as necessary. See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.
  5. Open driver door. If DOOR AJAR message is displayed, close door and open passenger door. If DOOR AJAR message is displayed, go to next step. If DOOR AJAR message is not displayed, repair door ajar circuit as necessary. See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.
  6. Turn ignition on. If SECURITY indicator is off, go to next step. If SECURITY indicator is on or flashing, go to step  8 .
  7. Check following circuits for intermittent problems. Door ajar switches, power door lock switches, hood ajar switch (export only) and communications between BCM, RDCM, LDCM and PCM. If no problems are found, system is okay. If a problem is found, repair as necessary. Turn ignition off. Reconnect all components and connectors. Turn ignition on. If repair is complete, go to UTD SYSTEM CHECK  .
  8. Using scan tool, check for any UTD related DTCs. If any DTCs exist, see DIAGNOSTIC TESTS  . If no DTCs exist, system is okay.
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