What it means
The control module monitors the variable effort steering safety lock actuator’s response to commands. It sets this code when the actuator does not perform as expected.
At a glance
- Usually lights the ABS or stability-control warning light
- The engine or gearbox may go into limp mode
How it works
The variable-effort steering safety lock actuator helps control or secure the steering system when commanded by the vehicle. The control module checks whether the actuator responds as expected; this code sets when its operation does not match the command.
Common causes
Most likely first.
- Safety lock actuator binding or failure
- Damaged wiring or poor connection
- Low or unstable system voltage
- Control module fault
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
How to diagnose it
- Record freeze-frame data and scan the steering, ABS, and stability systems for related codes to see whether low voltage or another fault occurred at the same time.
- Check battery condition and charging-system performance against the manufacturer's specification because unstable voltage can disrupt actuator operation.
- Inspect the safety lock actuator and its linkage for binding, damage, or obstruction.
- Inspect the actuator connector and harness for loose or corroded terminals, damaged insulation, and poor connections.
- Use a scan tool to command the actuator if supported, then check its response and the control circuit against the manufacturer's diagnostic procedure.
- If the actuator, wiring, and supply voltage pass their checks, verify module inputs and software before considering a control-module fault.
Common fixes
- Clean and secure the actuator connector and repair damaged wiring.
- Correct a weak battery or charging-system problem.
- Repair binding in the safety lock actuator or linkage.
- Replace a failed safety lock actuator.
- Repair or reprogram the control module if vehicle-specific diagnosis confirms it is at fault.
Can I keep driving?
Steering-related safety functions and stability assistance may be limited, and brake assist may be reduced. Avoid unnecessary driving; if steering or braking feels abnormal, stop safely and arrange inspection.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.