FixVault

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • HO2S current check
  1. Poor connection
  2. Damaged or corroded terminals
  3. HO2S (S1)
Enable Conditions
  • Exhaust gas temperature less than 800°C (1472°F)
  • Target Lambda between 0.95 - 1.05
  • Heating ratio between 20 - 80%
Threshold Value
  • Sensor Current Change calculated form Sensor Output Voltage greater than 190 μA
Diagnostic Time
  • Continuous
Mil On Condition
  • 2 driving cycles
* S1: upstream oxygen sensor/S2: downstream oxygen sensor