Operation CHARM: Car repair manuals for everyone.

B1A3E






B1A3E-SIREN / ITM MISMATCH





For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

While the VTSS is armed.

- Set Condition:

When the learned Siren information stored in the ITM does not match.





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).

Does the DTC reset?

Yes

- Inspect wiring from ITM to Siren for an intermittent open condition. Check connector terminals for back out, corrosion or loose terminal contact. If OK, Replace the Siren.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go to 2

2. INTERMITTENT CONDITION

NOTE: Check for any of the follow conditions:
- Poor wire to terminal connection
- Corroded terminals
- Backed out or loose terminals
- Broken wire internal to the insulation

Were there any problems found?

Yes

- Repair the wiring as necessary.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- DTC is not active at this time. Test complete.