Not yet classified fault codes

61 documented codes across 118 real diagnostics.

Well-formed codes that no family rule claims, mostly manufacturer-specific ranges whose meaning differs per make. This panel is the intended way to grow the family list.

Ranked by how often we actually see them

  • P208E, not individually documented
  • P2B2A, not individually documented
  • P2237, O2 sensor positive current control circuit open, bank 1 sensor 1
  • P04D9, not individually documented
  • P253F, not individually documented
  • P0215, Engine shutoff solenoid
  • P20BD, not individually documented
  • P023D, not individually documented
  • P20A2, not individually documented
  • P26F4, not individually documented
  • P2000, not individually documented
  • P250A, not individually documented
  • P269F, not individually documented
  • P2269, Water in fuel condition
  • P00AF, Turbocharger boost control module performance
  • P0661, Intake manifold tuning valve control circuit low, bank 1
  • P2600, Coolant pump A control circuit open
  • P0076, Intake valve control solenoid circuit low, bank 1
  • P00B7, Engine coolant flow low or performance
  • P0217, Engine coolant over-temperature condition
  • P0686, ECM/PCM power relay control circuit low
  • P2251, O2 sensor negative current control circuit open, bank 1 sensor 1
  • P225E, not individually documented
  • P225B, not individually documented
  • P24B3, not individually documented
  • P23AD, not individually documented
  • P24A8, not individually documented
  • P2681, not individually documented
  • P2B60, not individually documented
  • P02A0, not individually documented
  • P00BA, not individually documented
  • P068A, not individually documented
  • P06B8, not individually documented
  • P203F, not individually documented
  • P007B, not individually documented
  • P2670, not individually documented
  • P0183, Fuel temperature sensor A circuit high
  • P2293, Fuel pressure regulator 2 performance
  • P2519, A/C request A circuit
  • P2556, Engine coolant level sensor circuit range/performance
  • P0075, Intake valve control solenoid circuit, bank 1
  • P0078, Exhaust valve control solenoid circuit, bank 1
  • P0079, Exhaust valve control solenoid circuit low, bank 1
  • P0082, Intake valve control solenoid circuit low, bank 2
  • P0085, Exhaust valve control solenoid circuit high, bank 2
  • P0184, Fuel temperature sensor A circuit intermittent
  • P0491, Secondary air injection system insufficient flow, bank 1
  • P0492, Secondary air injection system insufficient flow, bank 2
  • P0495, Cooling fan speed excessive
  • P0660, Intake manifold tuning valve control circuit open, bank 1
  • P2062, Reductant supply control circuit low
  • P2096, Post-catalyst fuel trim system too lean, bank 1
  • P2141, Exhaust gas recirculation throttle control circuit low
  • P2146, Fuel injector group A supply voltage circuit open
  • P2227, Barometric pressure circuit range/performance
  • P2299, Brake pedal and accelerator pedal position incompatible
  • P2426, Exhaust gas recirculation cooling valve control circuit low
  • P2442, Secondary air injection switching valve stuck closed, bank 2
  • P2560, Engine coolant level low
  • P2638, Torque management feedback signal A range/performance
  • P2647, A rocker arm actuator system performance or stuck off, bank 1