FixVault

General Information: DTC Detecting Condition

DTC DETECTING CONDITION AND POSSIBLE CAUSE

Item Detecting Condition Possible Cause
DTC Strategy
  • Plausibility check during shift of lambda setpoint to rich or lean
  • Poor connection or damaged harness
  • Front HO2S
Enable Conditions
  • No fuel cut-off
  • No full load phase
  • No fuel trim error detected
  • Delay time to start diagnosis : 13 ~ 30 sec., depending on operation point
  • 11V < Battery voltage < 16V
  • No relevant failure
Threshold Value
  • Rear HO2S signal > 0.2 V when lambda set point = 1.15
Diagnostic Time
  • 30 sec.
MIL On Condition
  • 2 Driving Cycles