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P2240 - O2 Sensor Positive Current Control Circuit Open (Bank 2, Sensor 1)

DTC DESCRIPTION P2240 - O2 SENSOR POSITIVE CURRENT CONTROL CIRCUIT OPEN (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: 
  • UO2SPC21 circuit open
  • 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 .