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Home >> Ford >> 2015 >> Focus S, Standard Trans, Gas >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> P2631 - O2 Sensor Positive Current Trim Circuit High (Bank 2 Sensor 1) - DTC Chart
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P2631 - O2 Sensor Positive Current Trim Circuit High (Bank 2 Sensor 1) - DTC Chart

P2631 - O2 SENSOR POSITIVE CURRENT TRIM CIRCUIT HIGH (BANK 2 SENSOR 1) - DTC CHART

Description:  This DTC sets when a concern is detected with the circuit used to determine the oxygen content in the exhaust gas.
Possible Causes: 
  • UO2SPCT21 circuit short to voltage
  • Damaged universal heated oxygen sensor bank 2, sensor 1 (HO2S21)
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DZ .