Diagnostic Test

WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT
NOTE:
Diagnose any related Communication DTCs before continuing.
1. With a scan tool, read and record DTCs.
2. With the scan tool, clear DTCs.
3. Turn the ignition off and remove the key from the ignition.
4. Lock and close all doors to allow the VTSS to go from pre-arm to armed status and wait one minute.
5. Disarm the VTSS.
6. Using the scan tool, read ITM DTCs.
  Does the DTC reset?
  
  Yes
  - Check for and correct any CAN INTERIOR Bus DTCs set in the ITM or the TIPM. Also check for related software updates for the ITM and/or TIPM.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.
  No
  - DTC is not active at this time. Test complete.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.