C0622Variable Effort Steering Lock/Safety Actuator Control Circuit High
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0622 is the critical direction for a fail-safe lock: the actuator line reads high even when the controller wants it off. Since the lock in these designs releases when powered, a line shorted to battery voltage would keep it open when it should engage, so the safety path no longer works. Continental's superimposed steering unit, for example, stays open while powered and only blocks the planet carrier once power is gone, after which the normal steering gear still steers the car. JTEKT varies the holding duty with battery voltage to keep the coil cool. Controllers that detect a stuck-high line therefore shut the variable function down. No maker documents C0622 publicly.
- What you may notice
- Steering system warning; variable function switched off
- No noticeable change in normal steering
- Likely causes
- LikelyLock solenoid wire shorted to a battery-fed circuit
- PossibleDrive transistor in the module stuck on
- RareCharging system overvoltage
- Repair
- Hard · Usually a job for a workshop.Typical cost: €30 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.