FixVault

DTC Information: DTC Detecting Condition

Condition Detecting Condition Possible Cause
DTC Strategy
  • Monitoring deviation between target idle speed and actual engine speed during catalyst heating
  1. Checking leakage of air intake
  2. Checking operation of ETC
Enable Conditions
  • Catalyst heating operating condition (during 20 sec immediately after cold start in 77°F range)
  • Idle speed engine operating state
  • Vehicle speed < 1.9 mph
Threshold Value
  • Current RPM is lower than target RPM as much as 270RPM (Engine speed too low)
  • Current RPM is higher than target RPM as much as 200RPM (Engine speed too high)
Diagnostic Time
  • 20sec
Mil On Condition
  • two trips