What it means
VES sensor signal voltage below expected range. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
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 sensor sends a signal voltage to the control module. This low-circuit code sets when that signal falls below the expected range, which can happen if the signal is pulled toward ground or the connection has excessive resistance.
Common causes
Most likely first.
- Signal wire shorted to ground
- Connector pins corroded - high contact resistance
- Harness chafing through insulation
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 for related steering codes to see whether the low signal occurred with other voltage or sensor faults.
- Inspect the sensor connector and harness for chafing, corrosion, loose pins, or water entry that could pull down the signal.
- Check the sensor's power and ground, then measure the signal circuit using the wiring diagram and manufacturer's specification.
- With the circuit safely isolated as directed by the service procedure, check for a signal wire short to ground.
- Move the harness gently while monitoring the signal to reveal intermittent shorts or poor terminal contact.
- If the wiring and connections pass, test the sensor output and control-module input before replacing either component.
Common fixes
- Clean and secure corroded or loose connector terminals.
- Repair insulation damage where the signal wire is contacting ground.
- Restore a sound sensor power or ground connection.
- Replace the sensor if its output remains below specification with a verified circuit.
- Repair the control module only if testing confirms its input is faulty.
Can I keep driving?
ABS and stability control may be unavailable, and brake assist may be reduced. Drive only if steering and braking feel normal, avoid high speeds and sudden manoeuvres, and stop if braking effort changes.
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.