P0554: Power Steering Pressure Sensor/Switch Circuit Intermittent — what it means, the affected system and what to check before replacing parts.
Meaning, symptoms, causes and checks
Power Steering Pressure Sensor/Switch Circuit Intermittent. Basic catalogue definition; diagnostic details have not yet been reviewed.
Affected system: Powertrain
Symptoms
- Warning light may illuminate
- System function may be impaired
- Symptoms depend on the vehicle and fault conditions
Possible causes
- A pressure switch fault, fluid or hydraulic problem, or connector damage can cause implausible feedback.
- Connector, wiring, ground, or supply-voltage fault
- Vehicle-specific mechanical or control problem
What to check
- Record codes and freeze-frame data
- Compare power-steering pressure switch state with steering load and inspect wiring and fluid/system condition.
- Compare results with vehicle-specific service information
- Verify the repair and monitor readiness
- Compare power-steering pressure switch state with steering load and inspect wiring and fluid/system condition.
- Repair the confirmed cause and retest under the original fault conditions
Also written as: P0554-00, P055400, PO554 (some scan tools add the fault-type byte, e.g. -00).