Trouble Code Erasure
TROUBLE CODE ERASUREA Diagnostic trouble code will be cleared from TCM memory if 40 Warm-Up Cycles have occurred.
A warm-up cycle is defined as "sufficient vehicle operation such that the coolant temperature has risen by at least 40°F from engine starting and reaches a minimum temperature of 160°F".
The Malfunction Indicator Lamp (MIL) will turn off after 3 good trips. The MIL will also turn off if the DTC's are cleared from the TCM with the diagnostic scan tool or if the problem corrects itself.