Owners of a 2019-2020 Chevy Trax vehicle may comment on a check engine light and Service Power Steering message displayed.
You may find DTC U0100 set in the power steering control module (PSCM), and fuse F9DA may be blown after a short to ground on circuit 5985 was repaired. Once this code sets, it may be unrecoverable and will not clear. You may see a rejected by control module error message when attempting to clear codes.
The cause of this condition may be a short to ground on circuit 5985 caused by an internal body control module (BCM) failure, which induces failure into the power steering control module (PSCM).
The correction: Replace the BCM and the PSCM. Replace the steering column. Once the steering column is replaced, then replace the BCM.
The steering column is available as P/N 42622461. The BCM is P/N 13594571.
