B1A20

B1A20-PRE-ARM TIMEOUT

WHEN MONITORED
During the VTSS pre-arm process.

SET CONDITION
If the VTSS pre-arm sequence is interrupted within sixteen seconds after securing the vehicle.

POSSIBLE CAUSES
- Intermittent problem with fused (B+) to cluster
- Intermittent problem with CAN B BUS circuits to cluster

DIAGNOSTIC TEST

1. DETERMINING IF DTC IS CURRENT

NOTE: Diagnose any related Communication DTC(s) before continuing.

With a scan tool, read and record DTC(s).
With the scan tool, clear DTC(s).
Turn the ignition off and remove the key from the ignition.
Lock and close all doors to allow the VTSS to go from pre-arm to armed status and wait one minute.
Disarm the VTSS.
Using the scan tool, read DTC(s).

Q: Does the DTC reset?

YES: Remove the Cluster and inspect the Fused B (+) and both CAN B BUS circuits for spread terminals or intermittent opens.
Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: DTC is not active at this time. Test complete.