C1233 on Buick

On Chevrolet and Buick, right front wheel speed sensor circuit open or shorted

Severity not verified — if the car runs badly, have it inspected

The ABS and traction control lamps stay on and the system may cycle unexpectedly, but none of our sources rate how long driving is safe; the normal brakes still work when ABS is off.

It gets more serious if:

  • Inspect soon: Get it checked soon if the ABS cycles during normal braking or the car pulls to one side when you brake. An Impala owner reports both.

Safety-critical system: explanation only, no DIY steps. Source: how we rate severity

This page covers only what differs on Buick. For what C1233 means, the ranked causes and the test order, see the C1233 guide.

What's different on Buick

Buick

  • 032503 (buick)Status unverified

    Front wheel bearing replacement for front wheel speed sensor codes

    2001–2003century, regal · NHTSA 10001865

    Replace the front wheel bearing when the ABS, traction control or service engine soon light is on with front wheel speed sensor codes P1221, P1222, P1225, P1226, C1232 or C1233.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Sources and review

  1. GM bulletin 032503: front wheel bearing replacement for front wheel speed sensor codes — General Motors via NHTSA
Last reviewed
Written by
Saurabh K.
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