OBD Guide
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P0550

Power Steering Pressure Sensor/Switch Circuit

P0550 is an OBD-II diagnostic trouble code meaning: Power Steering Pressure Sensor/Switch Circuit. Common causes: open or short circuit in wiring harness, malfunction of the power steering pressure sensor. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Increased steering effort
  • Check Engine Light Is On
  • Unstable engine operation at idle

Causes

  • Open or short circuit in wiring harness
  • Malfunction of the power steering pressure sensor
  • Poor contact in the sensor connector
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check wiring harness for damage
  2. Check sensor connectors for oxidation or corrosion
  3. Test the power steering pressure sensor
  4. Replace sensor if necessary
  5. Reset the error and check if it returns

Related codes

P0551P0552P0553

Error P0550 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0550 code mean?

P0550 is an OBD-II diagnostic trouble code that indicates: Power Steering Pressure Sensor/Switch Circuit

What causes a P0550 error code?

The most common causes of P0550 include: Open or short circuit in wiring harness; Malfunction of the power steering pressure sensor; Poor contact in the sensor connector; Problems with the engine control unit (ECU).

How do I fix a P0550 diagnostic trouble code?

To fix P0550: Check wiring harness for damage. Check sensor connectors for oxidation or corrosion. Test the power steering pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0550?

Limited driving only, diagnose soon

How much does it cost to fix P0550?

The estimated repair cost for P0550 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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