FixVault

General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage range check
  • Open in signal harness
  • Open in ground harness
  • Poor connection or damaged harness
  • Faulty Heated O2 Sensor (HO2S)
Enable Conditions
  • Downstream O2 sensor operative readiness detected
  • Downstream O2 sensor pre-heating phase finished
  • No relevant failure
  • 10V < Battery voltage < 16V
Threshold Value
  • 0.37 V < VLS_DOWN < 0.48 V and O2 Sensor Element resistance > 60 kOhm
Diagnostic Time
  • 30 sec.
Mil On Condition
  • 2 Driving Cycles