Power Steering Pressure Sensor Circuit Range/Performance Problem
The power steering pressure sensor is reading outside its normal range.
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What it means (plain English)
The power steering pressure sensor measures how much pressure is in the power steering system. If the reading is too high or too low, it triggers this code.
What the computer is actually seeing
The computer monitors the voltage output from the power steering pressure sensor which should be between 0.5V to 4.5V, depending on the pressure in the system.
What a healthy reading looks like
Expect the power steering pressure sensor output to be approximately 1.0V at low pressure and up to 4.0V at high pressure 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. If low, refill and retest. Decision Point: Is the light still on after refill? If yes, proceed to the next step.
- 22. Inspect the wiring and connector to the power steering pressure sensor for damage or corrosion. Repair any issues found. Decision Point: Is the light still on? If yes, proceed to the next step.
- 33. Measure the voltage output of the power steering pressure sensor while turning the steering wheel. Expected range is 0.5V to 4.5V. Decision Point: Is the value within range? If no, replace the sensor. If yes, proceed to the next step.
- 44. Inspect the power steering pump for proper operation. Listen for noise and check for leaks. Decision Point: Is the pump functioning correctly? If no, replace the pump.
Common causes
- Faulty power steering pressure sensor
- Wiring issue or bad connector
- Low power steering fluid level
- Faulty power steering pump
- Mechanical binding in the steering system
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally safe to drive, but steering response may be affected. Get it checked soon.
Will this code come back?
If the underlying issue isn't fixed (like a faulty sensor or low fluid), it likely will.
Why does this code appear with other codes?
This code can appear alongside others if multiple issues exist in the steering system.
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