Power Steering Control Module Fault
There's a problem 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 isn't communicating right with the system, making steering harder or unresponsive. It normally helps steer with less effort, and a fault here can make it tough to drive especially at low speeds.
What the computer is actually seeing
The control module detects inconsistent signals from the power steering system sensors, which should provide consistent voltage around 0-5 volts based on steering effort and wheel position.
What a healthy reading looks like
Look for battery voltage (12-14V) at the power steering control module, and ensure sensor signals are within 0.5-2.5V during operation.
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; it should be between the minimum and maximum marks. Low levels can cause steering issues. If low, top off and retest.
- 22. Inspect wiring and connectors going to the power steering control module for signs of damage or corrosion. Repair any identified issues before proceeding.
- 33. Use a multimeter to measure voltage at the power steering control module. Expected battery voltage (12-14V) should be present. If not, troubleshoot the power supply.
- 44. Check the signal voltages from the steering position sensor. You should see a steady voltage between 0.5-2.5V. If fluctuating or absent, the sensor may be bad.
- 55. If all previous checks are good, consider testing or replacing the power steering control module. Use factory specifications for any further tests.
Common causes
- Wiring issues or damaged connectors to the power steering control module
- Low power steering fluid level or leaks in the system
- Faulty power steering control module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
It's drivable, but steering may feel heavy, especially at low speeds. Fix soon.
Will this code come back after I reset it?
If the underlying issue isn't fixed, this code will likely return.
Why do I see this code with a steering effort issue?
Because the power steering module controls assistance based on input from the steering sensors.
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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