ABS SENSOR ISSUE?

145,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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BHAMDOC1
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  • 423 POSTS
had these codes, then deleted them and still have the front 2 sensors without even driving the car. jacked up the car and i see front pads have been replaced but the abs sensors look old. is this something common on these cars? what are the odds that both are bad or were installed non oem or whatever the code means. i also see some loseness in the suspension maybe a control arm is bad
Mar 25, 2026 at 2:04 AM

What to check next

Diagnostic guidance. Suggested checks and possible repairs are separate from the owner's reported results.

Treat this as an owner-reported result, not a reason to replace both sensors or the ABS module on another vehicle. If the concern recurs, record the full ABS codes and compare wheel-speed data while inspecting the relevant sensor circuits using the matching procedure. After repair, have the system checked for returning faults and consistent wheel-speed information.

Guidance references and applicability

2CarPros: Original discussion 1712428 https://2carpros.com/questions/abs-sensor-issue-32502758 Source for the owner's reported history and outcome. Contributor suggestions are not independently confirmed diagnoses. No attachment content was verified. HELLA: ABS and wheel-speed-sensor diagnosis https://www.hella.com/techworld/uk/technical/sensors-and-actuators/check-and-change-abs-and-wheel-speed-sensors/ General support for sensor-circuit diagnosis and checking wheel-speed data after repair. Its example vehicle is not a specification for this discussion.

Read the replies · Discussion summary and reported outcome

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STRAILER
  • ✓Experienced Mechanic
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It looks like you have codes C212A, C0031 and code C0034.

C0031 - left front wheel speed sensor
C0034 - right front wheel speed sensor
C212A - implausible/missing wheel speed signal related to ABS/ESC seeing bad data

Yep, I would check the wiring and if it looks good replace the ABS control module. There is a chance both wheel speed sensors are bad, but it is slight. Let me know what you find.
Mar 27, 2026 at 1:40 AM
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BHAMDOC1
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  • 423 POSTS
ya turned out that both sensors were bad. all good. thanks
Mar 29, 2026 at 12:27 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,673 POSTS
Wow, you don't see that to often, nice work. Thanks for letting us know, we are here to help. Ken
Mar 29, 2026 at 3:07 AM

Discussion summary

ABS SENSOR ISSUE?

The owner reported front wheel-speed-sensor faults returning after clearing codes, before the vehicle was driven. A contributor discussed wiring, sensors and the ABS module. The owner later said both front sensors were bad and that everything was working.

Reported outcome: The owner reported that both sensors were faulty and the issue was resolved.

The owner did not describe the tests or explicitly detail the repair work. Referenced scanner information was not available as an image in this export; the contributor's code interpretations are not repeated as verified definitions.

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