After Programming a Control Module

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

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

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

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 password learn procedure
The throttle position (TP) sensor learn procedure