OBD Guide

P0550

Power Steering Pressure Sensor/Switch Circuit

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

Error P0550 by Vehicle Brand