The following service procedures require either a programming or a setup event performed for a complete repair.

If the engine control module (ECM) is replaced, the following procedures must be performed:

1. Idle Learn Procedure--Refer to the appropriate procedure:

•	Idle Learn in Engine Controls 1.4L DOHC

•	Idle Learn in Engine Controls 1.6L (L91)

•	Idle Learn in Engine Controls 1.8L (L79)

•	Idle Learn in Engine Controls 2.0L (L34 GMDAT)

2. The crankshaft position (CKP) System Variation Learn Procedure-- Refer to Crankshaft Position System Variation Learn in Engine Controls 1.8L (L79) or Crankshaft Position System Variation Learn in Engine Controls 2.0L (L34 GMDAT).
3. Theft Deterrent--Refer to Programming Theft Deterrent System Components in Theft Deterrent. The ECM will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. An ECM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password, and will require a learn procedure after programming to learn the current vehicle's password.

If the engine control module (ECM) needs to be reprogrammed, refer to Service Programming System (SPS) .

The replacement of some components will require a setup procedure for complete repair.