Reading and Clearing Diagnostic Trouble Codes
TROUBLE CODE ERASUREA Diagnostic trouble code will be cleared from control module memory if it has not reset for 40 warm-up cycles.
A warm-up cycle is defined as sufficient vehicle operation such that the coolant temperature has risen by at least 22°C (40°F) from engine starting and reaches a minimum temperature of 71°C (160°F).
The Malfunction Indicator Lamp (MIL) will turn off after 3 good trips or when the DTC's are cleared from the control module.