Faulty wheel speed sensor or damaged sensor wiring; Dirty or damaged magnetic encoder ring on a wheel bearing; Low brake fluid level or faulty brake pressure sensor; Steering angle sensor out of calibration or faulty; Yaw rate or lateral acceleration sensor malfunction; ABS control module internal fault or software issue; Can bus communication error between the stability control module and other systems

DTC codes / C00xx · Brakes, steering and suspension / C006C

C006CStability System

Q: What does code C006C mean?

Stability System. C006C indicates that the electronic stability control (ESC) system has detected a fault and disabled itself, often illuminating the stability control warning light. The computer has stored this code because a sensor, actuator, or communication issue prevented the system from performing its normal self-check or operation.

C006C indicates that the electronic stability control (ESC) system has detected a fault and disabled itself, often illuminating the stability control warning light. The computer has stored this code because a sensor, actuator, or communication issue prevented the system from performing its normal self-check or operation.

SystemChassis

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaBrakes, steering and suspension

Symptoms you may notice

Stability control warning light illuminated on the dashboard
Traction control warning light may also be on
System may be disabled, so the vehicle will not intervene during skids
Often no other symptoms besides the warning light
In some cases, a related message such as 'ESC Off' or 'Service StabiliTrak' appears
Brake pedal may feel different if the fault involves the hydraulic unit

Common causes, most likely first

Faulty wheel speed sensor or damaged sensor wiring
Dirty or damaged magnetic encoder ring on a wheel bearing
Low brake fluid level or faulty brake pressure sensor
Steering angle sensor out of calibration or faulty
Yaw rate or lateral acceleration sensor malfunction
ABS control module internal fault or software issue
Can bus communication error between the stability control module and other systems

How to diagnose and fix it

Use an OBD-II scanner to read all codes and check for related ABS, wheel speed, or steering angle codes
Inspect each wheel speed sensor and its wiring for damage, corrosion, or loose connections
Check brake fluid level and inspect for leaks in the hydraulic system
Perform a visual inspection of the steering angle sensor and its calibration
Test the yaw rate and lateral acceleration sensors with a scan tool that can read live data
Check for technical service bulletins (TSBs) or software updates for the stability control module
If all else fails, diagnose the ABS control module and consider replacement or reprogramming

What most technicians overlook with C006C

A dirty or corroded wheel speed sensor connector often sets C006C without triggering a wheel speed code, so cleaning the connector can resolve the issue.
The stability control system relies on the steering angle sensor, which can be knocked out of calibration by a simple wheel alignment or steering wheel removal.
Low brake fluid can cause C006C because the brake pressure sensor feeds into the stability system, and a small leak may not yet affect braking performance.
A weak battery or charging system fault can cause communication errors that set C006C, so always check battery voltage and ground connections first.
C006C is sometimes stored after replacing a wheel bearing or suspension component if the magnetic encoder ring is damaged or installed incorrectly.

Can I keep driving with C006C?

You can usually drive the vehicle with C006C, but the stability control system will not intervene in an emergency, so drive cautiously and avoid aggressive maneuvers. Have the fault diagnosed soon to restore full safety system function.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.