# ABS malfunction indicator that does not illuminate when power is first applied to the ABS controller (ECU) during initial power up — Vehicle inspection defect categories: MOT major, minor and dangerous verdicts

For ABS malfunction indicator that does not illuminate when power is first applied to the ABS controller (ECU) during initial power up, category is Reject; inspection item number is 1; defect reference is l.(2); inspection item is Brake System; authority is US 49 CFR Appendix A to Part 396, recorded from its source on 2026-08-06.

- **Defect:** ABS malfunction indicator that does not illuminate when power is first applied to the ABS controller (ECU) during initial power up _(verified: appears in the quote below)_
- **Category:** Reject
- **Inspection item number:** 1
- **Defect reference:** l.(2)
- **Inspection item:** Brake System
- **Authority:** US 49 CFR Appendix A to Part 396 _(our reading, not quoted from the source)_

## What the source says

> (2) ABS malfunction indicator that does not illuminate when power is first applied to the ABS controller (ECU) during initial power up.

## Source

- https://www.law.cornell.edu/cfr/text/49/appendix-A_to_part_396

Last verified: 2026-08-06. Review by: 2027-02-02.
Part of [Vehicle inspection defect categories: MOT major, minor and dangerous verdicts](https://referencesource.org/vehicle-inspection-defect-categories/).