Operation CHARM: Car repair manuals for everyone.

After Programming A Control Module

The powertrain may operate slightly different after a control module software/calibration update. Operating the powertrain through various driving conditions allows the control module to re-learn certain values. The control module must re-learn the following after a software/calibration update:
^ Fuel trim correction
^ Idle air control learned position
^ Automatic transmission shift adapts

Other learned values only re-learn by doing a service procedure.

If a control module is replaced the following service procedures must be performed:
^ The Crankshaft Variation Learn Procedure, if applicable.
^ The Engine Oil Life Reset Procedure, if applicable.
^ The Idle Learn Procedure, if applicable.
^ The Inspection/Maintenance Complete System Set Procedure
^ The Vehicle Theft Deterrent Password Learn Procedure, if applicable.
^ The TP sensor Learn Procedure, if applicable.