Clearing Diagnostic Trouble Codes: Self-Erasure

After 3 good trips, Powertrain Control Module (PCM) will turn off the MIL. At that time, the PCM will automatically switch the trip counter to a warm-up cycle counter. The PCM will erase DTCs after 40 warm-up cycles (80 for fuel system monitor or misfire monitor) if the recent malfunction does not reoccur in that time. For additional information on good trips and warm-up cycles, see Trip Indicator .