C0620Variable Effort Steering Lock/Safety Actuator Control Circuit/Open
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Some steering systems that vary effort or ratio carry a second actuator whose only job is safety: a solenoid lock that blocks the motor or gear so the wheel turns the wheels directly. Delphi's patent combining Magnasteer with an active steering actuator uses a solenoid that is energised to unlock and drops into lock without power; JTEKT and Continental lock their superimposed steering the same fail-safe way. C0620 means this lock's circuit is open, so the unit cannot release and the variable function stays off. No maker publishes C0620 in this sense. On 2014–2019 GM trucks C0620 appears among suspension codes in PIT5307G, an older, unrelated assignment.
- What you may notice
- Variable steering function disabled; steering works with a fixed characteristic
- Steering system warning
- Possible click or no click from the steering when switching on
- Likely causes
- LikelyConnector to the lock solenoid unplugged or corroded
- PossibleOpen lock solenoid coil, for example after overheating
- PossibleBroken wire between the steering module and the lock
- 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.