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 (IAC) learned position.
• Automatic transmission shift adapts.

If a control module is replaced the following service procedures may need to be performed:

• The crankshaft variation learn procedure.
• The engine oil life reset procedure.
• The idle learn procedure.
• The inspection/maintenance complete system set procedure.
• The Vehicle Theft Deterrent (VTD) password learn procedure.
• The Throttle Position (TP) sensor learn procedure.