*VTSS WILL NOT ARM
For a complete wiring diagram Refer to Section 8W
| Possible Causes |
| VEHICLE THEFT SECURITY SYSTEM (VTSS) DISABLED IN BODY CONTROL MODULE (BCM) |
| BODY CONTROL MODULE (BCM) DTCS PRESENT |
| AJAR SWITCH CIRCUITS |
| BODY CONTROL MODULE (BCM) |
Diagnostic Test
1. VERIFY THAT VTSS IS ENABLED IN THE BCMTurn the ignition on.
With the scan tool in BCM, check that the VTSS is enabled.
Is the VTSS enabled?
Yes
- Go To 2
No
- With the scan tool, enable the VTSS.
- Perform VTSS VERIFICATION TEST - 1A. (Refer to VTSS VERIFICATION TEST - 1A - STANDARD PROCEDURE) in this Section.
2. CHECK FOR DTCs IN THE BCM
With the scan tool, read BCM DTCs.
Does the scan tool display any DTCs?
Yes
- Diagnose and repair the DTC(s) Refer to the Table of Contents in the applicable Section for the diagnostic procedure(s).
- Perform VTSS VERIFICATION TEST - 1A. (Refer to VTSS VERIFICATION TEST - 1A - STANDARD PROCEDURE) in this Section.
No
- Go To 3
3. CHECK AJAR SWITCH STATES WITH THE SCAN TOOL
Verify that the tailgate, flip-up glass, and all doors are closed.
With the scan tool in BCM, select Data Display and read the Ajar Switch states.
Do any Ajar Switch states display: Closed?
Yes
- Diagnose and repair all Ajar Switch circuits that display as Closed on the scan tool. (Refer to 8 - ELECTRICAL/LAMPS/LIGHTING - INTERIOR - DIAGNOSIS AND TESTING) for Ajar Switch related diagnostic procedures.
- Perform VTSS VERIFICATION TEST - 1A. (Refer to VTSS VERIFICATION TEST - 1A - STANDARD PROCEDURE) in this Section.
No
- Replace and program the BCM in accordance with the Service Information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).