LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2007 >> Rondo Base >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (2 Of 2) - 2.4L >> DTC P0551 Power Steering Pressure Sensor/Switch Circuit Range/Performance >> Component Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Inspection

  1. With ignition "OFF", reconnect the switch and ECM connectors
  2. Ignition "ON" & Engine "ON".
  3. Measure voltage between terminal 1 (back probe) of the switch harness connector and chassis ground.

    Specification : Approx. B+

    • Signal "OFF" (Steering wheel=Straight ahead) : Approx. B+
    • Signal "ON" (Steering wheel=Turned) : Approx. 0V
  4. Is voltage within the specification?

    YES 

    • Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

    NO 

    • Substitute with a known-good sensor and check for proper operation. If the problem is corrected, replace sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
scientia non olet · About LEMON Manuals