Traction Control Module Fault
A fault detected in the traction control system.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The traction control system is not working right, which helps prevent wheel spin when accelerating on slippery surfaces. If it's failing, the computer can't keep the wheels from slipping.
What the computer is actually seeing
The traction control module monitors wheel speed sensors, throttle position, and other inputs. If it detects irregular values or communication issues, it sets this code.
What a healthy reading looks like
Wheel speed sensors should show a consistent voltage between 0.5V to 2.5V while the vehicle is in motion; they should read 12V with the ignition on, not running. Throttle position should correlate with the accelerator pedal position between 0% and 100%.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect wiring and connectors related to the traction control module and wheel speed sensors for damage or corrosion. Decision: If found damaged, repair and retest. If good, proceed to step 2.
- 22. Check battery voltage. Ideal should be above 12.4V with the vehicle off and above 13.5V with it running. Decision: If low, address battery/charging issues first. If voltage is good, proceed to step 3.
- 33. Test wheel speed sensors for proper operation using a multimeter (should have approximately 0.5-2.5V as mentioned). Decision: If faulty, replace the affected wheel speed sensor. If they are all good, proceed to step 4.
- 44. Connect a scan tool to check for additional codes or history related to the traction control system. Decision: If you find related codes, diagnose them as necessary. If none, replace the traction control module as a last resort.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Failed traction control module
- Low battery voltage or poor power supply to the module
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable, but traction control won't help on slippery roads, so be cautious.
Will this code come back after clearing it?
It may come back if the underlying issue isn't resolved.
Why does this code pair with other codes?
Other codes often indicate related problems in the traction or stability control systems.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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