Can you keep driving?
Can you keep driving?
Stop driving if any of these apply
- !The system loses function completely or starts making noise or leaks that suggest a real mechanical problem.
- !The warning light is accompanied by a severe drivability or safety issue.
What to check first
Step-by-step checks
- 1
Free - no tools
Check the power steering fluid level and look for leaks before replacing the sensor
- 2
Free - no tools
Inspect the connector and harness for oil contamination or damaged pins
- 3
Basic tool needed
Notice whether steering effort changes with engine speed, because that helps separate sensor from hydraulic problems
- 4
Basic tool needed
If live data is available, compare the pressure signal with steering load
- 5
Basic tool needed
If the belt-driven pump is slipping or noisy, that side matters too
If the code returns
- -If fluid and pump checks are good, the sensor or wiring becomes more likely.
- -If the code returns after a repair, verify the signal while steering at low speed and at idle.
- -If the steering is clearly heavy, do not stop at the sensor until the hydraulic side is checked.
Background
What this code means
P0552 is a generic OBD-II pressure-sensor or pressure-switch code.
These codes often point to a sensor, wiring, fluid-level, or pressure-supply issue rather than the expensive component itself.
Steering assist may feel weak, especially at idle or during parking maneuvers.
Diagnosis
Common causes
Low pressure sensor signal
The sensor can fail low even if the system still works somewhat.
Low fluid or leak
A real steering-pressure issue can trigger the code.
Connector or wiring issue
A bad connection can pull the signal low.
Pump or belt problem
Mechanical pressure loss can make the signal look low.
Avoid these mistakes
What not to do
- xDo not replace a pump or compressor first if the sensor, wiring, or fluid level is obviously the issue.
- xDo not keep driving if the system is making noise, leaking fluid, or losing function quickly.
Parts
Parts that may need replacing
See also
Related OBD codes
P0550
P0550 usually means the power steering pressure sensor or switch circuit is not behaving correctly.
P0551
P0551 usually means the power steering pressure signal is out of normal range or performance.
P0553
P0553 usually means the power steering pressure signal is reading too high.
P0554
P0554 usually means the power steering pressure signal is intermittent.
Source notes
Generic OBD-II (SAE J1979 / ISO 15031-5). P0552 was expanded around common low power-steering pressure signal faults, including sensor bias, wiring issues, and hydraulic pressure problems.
This guide is written as a generic multi-make reference, so bulletin history, sensor locations, and repair order can still change by manufacturer and engine family.
This is generic OBD-II guidance and should not override vehicle-specific service information. Exact diagnosis and repair steps vary by make, engine family, and model year.
Last reviewed: 2026-04-10
Reference: Open reference