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VTSS Test 1A - Identifying Vehicle Theft Security System Problems

WARNING: This page is about a different car, the 1998 Dodge Intrepid and 1998 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Perform SYSTEM ID TEST 1A  before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION  . For wiring diagrams, refer to WIRING DIAGRAMS  . Perform, after each repair, VERIFICATION TEST VER-1A - BODY VERIFICATION TEST  .
CAUTION: Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
  1. If VTSS is operating without being tripped, select THEFT ALARM using scan tool. Select MONITOR DISPLAY and read ALARM TRIPPED BY status.
  2. If VTSS indicator light is illuminated constantly 30 seconds after key is turned on or while driving, go to VTSS TEST 3A  .
  3. Using scan tool, select BODY SYSTEM, then BODY COMPUTER. Verify communication with Body Control Module (BCM). If scan tool displays NO RESPONSE, go to TEST 1A  in VEHICLE COMMUNICATIONS.
  4. Using scan tool, select MONITOR DISPLAY. Read VTSS status. If VTSS mode is not DISARMED, go to VTSS TEST 2A  . If VTSS mode is DISARMED, go to next step.
  5. Using scan tool, select SENSORS. Read IGNITION VOLTAGE. If battery voltage is displayed with ignition on, go to next step. If battery voltage is not displayed with ignition on, go to TEST 14A  in VEHICLE COMMUNICATIONS.
  6. Using scan tool, check KEY IN IGNITION SWITCH status. If scan tool displays CLOSED with key inserted, go to next step. If scan tool does not displayed CLOSED with key inserted, go to POWER DOOR LOCK TEST 9A  .
  7. Using scan tool, select MISCELLANEOUS, then CHANGE MODE. Select DIAGNOSTICS. VTSS is now in diagnostic mode. Follow scan tool directions. When entering diagnostic mode with key in ignition switch, horn should sound twice and headlights and VTSS indicator light should flash. If horn does not sound, go to VTSS TEST 4A  . If VTSS indicator light does not illuminate, go to VTSS TEST 5A  . If headlights do not illuminate, go to EXTERIOR LIGHT TEST 1A  .
  8. Turn ignition on. If horn does not sound, go to go to TEST 1A  in VEHICLE COMMUNICATIONS. If horn does sound, go to next step.
  9. Using scan tool, select MONITOR DISPLAY. Read VTSS status. If VTSS mode is other than DISARMED, go to VTSS TEST 2A. If engine controller is 1 NO RESPONSE/2 NO RESPONSE, go to VTSS TEST 8A. If engine controller is 1 NOT OK TO ARM VTSS/OK TO RUN ENGINE, replace Powertrain Control Module (PCM). See Figure in INSTRUMENT CLUSTER TEST 4B.
  10. If problem is with Remote Keyless Entry (RKE) arm/disarm function, go to POWER DOOR LOCK TEST 11A  .
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