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Home >> Mitsubishi >> 2003 >> Diamante ES >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0551: Power Steering Pressure Switch Circuit Range/Performance Problem >> DTC Set Criteria
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DTC Set Criteria

DTC will set if power steering switch stays on. This will happen when engine coolant temperature is more than 86°F (30°C). Vehicle is repeatedly driven and stopped more than 10 times. Driving is when vehicle speed is 31 MPH or more for 4 seconds or more. Stopping is when vehicle speed is 0.9 MPH or less.