P22C4

Heated oxygen sensor (HO2S) 2, bank 2, pumping current trim – circuit high

DTC P22C4, sometimes indicated as P22C400 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing heated oxygen sensor (ho2s) 2, bank 2, pumping current trim – circuit high.

  • P22C4: Heated oxygen sensor (HO2S) 2, bank 2, pumping current trim – circuit high
  • P22C4 00: Heated oxygen sensor (HO2S) 2, bank 2, pumping current trim - circuit high

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