Power Steering Control Module Fault
This code indicates a communication issue with the power steering control module.
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 power steering control module is not talking properly to the vehicle's computer, which can feel like steering that’s too stiff or loose. This might happen if there's a bad connection or the module itself is faulty.
What the computer is actually seeing
The vehicle's main computer expects to receive data from the power steering control module, such as position and assist levels, but it doesn't get any expected signals or responses.
What a healthy reading looks like
Voltage signals from the power steering control module should be between 0.5V to 4.5V based on operating conditions, with expected position feedback indicating active steering assist.
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 and ensure the power steering fluid level is correct and there are no leaks. Decision: Is fluid level ok? Yes - Go to step 2; No - Top off fluid and retest.
- 22. Inspect wiring and connectors leading to the power steering control module. Look for corrosion or damage. Decision: Any damage found? Yes - Repair or replace wiring; No - Go to step 3.
- 33. Measure the voltage at the power steering control module connector. You should see 12V when the ignition is on. Decision: Is voltage present? Yes - Go to step 4; No - Repair power source or connector issue.
- 44. Check if the power steering control module is communicating with the vehicle's computer using a scan tool. Decision: Is there a response? Yes - Module is likely ok; No - Replace the power steering control module.
Common causes
- Wiring issues or damaged connectors going to the power steering control module.
- Bad power steering control module.
- Low power steering fluid levels or contamination.
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable but steering may be affected, making it harder to control, especially at low speeds.
Will the code come back after I clear it?
If the underlying issue isn't fixed, yes, the code will likely return.
Why does this code sometimes pair with other codes?
Codes can occur together due to shared wiring or systems; if one component fails, it can affect others.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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