The brake control module has detected an implausible signal from the brake pedal travel sensor. Pedal travel is used by brake assist, regenerative braking and adaptive cruise control to estimate driver intent.
High severity. Can I keep driving?The regular brakes usually keep working, but without ABS or the driver aids. Drive very carefully and go to a repair shop; if the pedal feel changes, do not keep driving.
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Most likely causes
- Pedal travel sensor failed
- Sensor not calibrated
- Wiring or connector fault
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: medium
What each character of C0594 means
- C: Chassis
- 0: Generic code: same on every make
- 5: Subsystem depends on the code range
- 94: Specific fault in that system
Frequently asked questions
Can I keep driving with code C0594?
The regular brakes usually keep working, but without ABS or the driver aids. Drive very carefully and go to a repair shop; if the pedal feel changes, do not keep driving.
What causes code C0594?
The most common causes are: pedal travel sensor failed; sensor not calibrated; wiring or connector fault.
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.