Engine Control Module Programming and Setup. Chevrolet Joy 2008

For 1990-2009 cars

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

### ECM Replacement

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

1. Idle Learn Procedure--Refer to Idle Learn for the 0.8L engine or Idle Learn for the 1.0L engine.
2. Theft Deterrent--Refer to Programming Theft Deterrent System Components. 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.

### ECM Reprogramming

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

### Setup for Component Replacement

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

If any of the following components are replaced, an Idle Learn Procedure must be performed. Refer to Idle Learn for the 0.8L engine or Idle Learn for the 1.0L engine.

• | Throttle body assembly

• | ECM