Headlamps Fail To Flash With VTSS

*HEADLAMPS FAIL TO FLASH WITH VTSS

For a complete wiring diagram refer to Diagrams/Electrical





Diagnostic Test

1. CHECK FOR DTCs IN THE BCM

Turn the ignition on.

With the scan tool, read BCM DTCs.

Does the scan tool display any DTCs?

Yes

- Diagnose and repair the DTC(s).
- Perform VTSS VERIFICATION TEST - 1A. VTSS Verification Test

No

- Go To 2

2. CHECK LOW BEAM HEADLAMP OPERATION

Turn the Low Beam Headlamps on.

Do the Low Beam Headlamps operate properly?

Yes

- Go To 3

No

- Refer to Headlamp related diagnostic procedures.
- Perform VTSS VERIFICATION TEST - 1A. VTSS Verification Test

3. VERIFY THE BCM IS PROGRAMMED WITH THE CORRECT COUNTRY CODE SETTING

With the scan tool in BCM, check the country code setting.

Is the BCM programmed with the correct country code setting?

Yes

- Replace and program the BCM.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Program the BCM with the correct country code setting.
- Perform VTSS VERIFICATION TEST - 1A. VTSS Verification Test