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Home >> Ford >> 2020 >> Fusion Titanium Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 76 (Engine Controls - Powertrain DTC Descriptions (Except Diesel & Hybrid) - DTC P2163 - P3404, DTC PXXXX, DTC U0046 - U300C, DTC UXXXX) >> DTC P2631 - O2 Sensor Positive Current Trim Circuit High (Bank 2 Sensor 1)

DTC P2631 - O2 Sensor Positive Current Trim Circuit High (Bank 2 Sensor 1)

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

Description:  This DTC sets when a concern is detected with the circuit used to determine the oxygen content in the exhaust gas.
Possible Causes: 
  • UO2SPCT2circuit short to voltage
  • Damaged universal heated oxygen sensor bank 2, sensor (HO2S21)
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DZ .