Steering Assist Sensor Failure
The steering assist sensor is not functioning correctly.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer is monitoring the steering assist sensor, which helps with power steering. If it fails, the steering may become heavy or unresponsive.
What the computer is actually seeing
The module expects the steering assist sensor to send a voltage signal between 0.5V to 4.5V depending on steering input. A signal outside this range, or no signal at all, will trigger the code.
What a healthy reading looks like
Steering assist sensor should provide 0.5V at full left, around 2.5V centered, and 4.5V at full right steering input.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check power steering fluid level. Fill if low, then retest. Decision: If code reappears, proceed to step 2.
- 22. Inspect the wiring and connector to the steering assist sensor for damage or corrosion. Repair as needed. Decision: If wiring is intact but code returns, proceed to step 3.
- 33. Test the electrical signal at the steering assist sensor with a multimeter. It should show voltage in the expected range. Decision: If voltage is out of range, replace the sensor; if voltage is correct, proceed to step 4.
- 44. Check the steering control module for fault codes using a scan tool for further diagnostics.
Common causes
- Faulty steering assist sensor
- Wiring issues in the sensor circuit
- Poor connection at the sensor or module
- Low power steering fluid level
Typical repair cost
$$$
Related codes
Frequently asked questions
Can I still drive the vehicle with this code?
Yes, but steering may be heavier and less responsive, making it harder to control.
Will the code come back after clearing it?
If the underlying issue isn’t fixed, the code will likely return.
Why does this code sometimes pair with ABS or traction control codes?
These systems may share sensors or software; a failure in steering can affect them due to their integrated functions.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →