The chassis or stability control module reports that the steering angle sensor has not been calibrated or that the calibration data has been lost. ESP requires a calibrated zero position and is disabled until calibration is performed.
High severity. Can I keep driving?If the steering feels stiff or uneven, drive slowly and go to a repair shop or call for roadside assistance. It is a safety system.
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Most likely causes
- Calibration required after battery disconnect or repair
- Sensor lost calibration data
- Wheel alignment incorrect, blocking calibration
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: easy
What each character of C0805 means
- C: Chassis
- 0: Generic code: same on every make
- 8: Subsystem depends on the code range
- 05: Specific fault in that system
Frequently asked questions
Can I keep driving with code C0805?
If the steering feels stiff or uneven, drive slowly and go to a repair shop or call for roadside assistance. It is a safety system.
What causes code C0805?
The most common causes are: calibration required after battery disconnect or repair; sensor lost calibration data; wheel alignment incorrect, blocking calibration.
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.