FixVault

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical check - check symptoms related to Lambda sensor open circuit
  1. Poor connection or damaged harness
  2. Open in HO2S control circuit
  3. Front HO2S
Enable Conditions
  • Upstream O2 sensor operative readiness is detected
  • Battery voltage is between 11V and 16V
Threshold Value
  • Pumping current trim circuit open (VRC)
  • Measured WRAF sensor label resistor is greater than 322.5Ω
Diagnosis Time
  • 2.5 seconds
MIL On Condition
  • 2 driving cycles