Power Steering Control Module Incorrect Message Received
The power steering control module received an unexpected signal.
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What it means (plain English)
The power steering computer thinks there's something wrong because it's getting a message from another part of the system that doesn't make sense.
What the computer is actually seeing
The steering control module expects to see a certain range of input signals, typically voltage levels around 0.5V to 4.5V depending on the steering load, but is receiving unexpected values.
What a healthy reading looks like
Steering angle sensor input should be between 0.5V and 4.5V; power assist level should show appropriate feedback according to steering input; confirmation messages sent within 100ms intervals.
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 the power steering fluid level. Ensure it's between the minimum and maximum marks. If low, top it up and recheck for the code.
- 22. Inspect the wiring and connectors between the power steering control module and steering angle sensor. Look for frayed wires or corroded connectors.
- 33. Use a multimeter to check the voltage at the steering angle sensor. It should read between 0.5V and 4.5V while turning the steering wheel.
- 44. If the voltage is out of range, replace the steering angle sensor and clear the code. Test drive the vehicle to see if the code returns.
- 55. If the voltage is normal, but the code persists, consider replacing the power steering control module.
Common causes
- Faulty power steering control module
- Wiring issue between the power steering control module and steering angle sensor
- Corroded connectors affecting signal quality
- Low power steering fluid level altering operational performance
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderately severe; you can drive, but power steering may be compromised, making steering harder, especially at lower speeds.
Will this issue come back after resetting?
It can come back if the underlying issue isn't fixed, like a faulty sensor or wiring problem.
Why does this error happen with C1541 as well?
C1541 is often a related fault due to similar communication issues in the power steering system.
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