Power Steering Assist Control Module Fault
Power steering assist control module is malfunctioning.
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 system can't correctly assist the steering because the control module is having issues.
What the computer is actually seeing
The steering control module detects a fault in its internal systems or communication with other modules, leading to loss of power steering assist.
What a healthy reading looks like
Normal voltage levels should be around 12-14 volts when the vehicle is on; signal from the power steering sensor should fluctuate based on wheel angle and assist requests.
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; top off if below minimum and inspect for leaks.
- 22. Inspect the wiring and connectors to the power steering control module for any visible damage or corrosion.
- 33. Using a scanner, check for any other related fault codes that might provide additional context.
- 44. Measure voltage at the power steering control module (should be between 12-14 volts).
- 55. If all seems fine, connect a scan tool and perform an active test of the power steering assist; if it fails, replace the power steering assist control module.
Common causes
- Corroded or damaged wiring in the power steering circuit
- Faulty power steering assist control module
- Low power steering fluid levels or air in the system
- Communication failure between the power steering control module and the PCM
Typical repair cost
$$$
Related codes
Frequently asked questions
Can I drive my vehicle with this code active?
Yes, but expect heavy steering effort, especially at low speeds. It's advisable to repair it soon.
Will this code return after clearing it?
If the underlying issue isn't fixed, yes, it will likely return.
Does this code always pair with other codes?
Not always, but it's common to see related codes that indicate issues with the steering system.
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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