C0405
Traction Control Active Too Long
TCS regulation has been continuously active longer than allowed, suggesting persistent low-friction conditions or a sensor fault.
TCS regulation has been continuously active longer than allowed, suggesting persistent low-friction conditions or a sensor fault.
Common causes
- medium
Persistent low-friction surface
A plausible cause — test and verify before replacing parts.
Typical part cost: $90-660
- medium
Wheel speed sensor drift
A plausible cause — test and verify before replacing parts.
Typical part cost: $90-660
See all causes + fix costs
Create a free Wrenchify account to unlock the rest for C0405.
Unlock causesFree forever · No credit card
First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
Get the full step-by-step diagnosis
Create a free Wrenchify account to unlock the rest for C0405.
Unlock diagnosisFree forever · No credit card
Related codes
See related trouble codes
Create a free Wrenchify account to unlock the rest for C0405.
Unlock related codesFree forever · No credit card
Frequently asked questions
What does C0405 mean?
C0405 means "Traction Control Active Too Long". It is a generic OBD-II code that points to a fault in the chassis.
What are the most common causes of C0405?
persistent low-friction surface; wheel speed sensor drift — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
Get the full C0405 diagnosis for your vehicle
Year, make, model + step-by-step repair help — free plan included.