Massachusetts Vehicle Inspection: ABS Light = Automatic Fail

No. In Massachusetts, an illuminated ABS (Anti-lock Braking System) warning light causes an immediate inspection failure.

Why?

• ABS is a federally mandated safety system (FMVSS 126) for all passenger vehicles since 2012 (most since 1990s)
• MA inspection (780 CMR) checks all dashboard warning lights—ABS, airbag, brake, check engine
• Any illuminated safety-system light = "reject"

What to Do

1. Diagnose: OBD-II scan (ABS codes are chassis, not powertrain—need ABS-capable scanner)
2. Common faults: wheel speed sensor, wiring, tone ring, pump/module, low fluid
3. Repair → light off → re-inspect (free re-test within 60 days at same station if repaired)

Note

Check Engine light also fails (emissions). TPMS light fails (since 2020). Airbag light fails. Only non-safety lights (e.g., maintenance reminder) may pass.

Fix the ABS. It's a safety system—for you.