FixVault

General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Check the circuit voltage (VF) with 5V supply (circuit open)
  • Poor connection
  • Open in HO2S circuit
  • Faulty HO2S
  • Faulty PCM
Enable Conditions
  • Engine coolant > 104 °F (40 °C)
  • Engine speed > 1187 rpm
  • Load value > 25%
Threshold value
  • Circuit voltage greater than or equal to 4.5V
Diagnosis Time
  • Continuous
MIL On Condition
  • 2 driving cycles