Engine Control Module: Testing and Inspection

Engine Control Module Programming and Setup

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. ECM Reprogramming-Refer to PSD SIE TITLE Error: SIE linked to empty Cell ID 71878.
2. Idle Learn Procedure-Refer to Idle Learn Procedure for the 2.0L engine or Idle Learn Procedure Testing and Inspection for the 2.5L engine.
3. The crankshaft position (CKP) System Variation Learn Procedure-Refer to CKP System Variation Learn Procedure for the 2.0L engine.
4. Theft Deterrent-Refer to Programming Theft Deterrent System Components (Scan 100) Programming Theft Deterrent System Components (Scan 100)Programming Theft Deterrent System Components (Tech 2) Programming Theft Deterrent System Components (Tech 2). 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 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 PSD SIE TITLE Error: SIE linked to empty Cell ID 71878.

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 Procedure for the 2.0L engine or Idle Learn Procedure Testing and Inspection for the 2.5L engine.

- Throttle body assembly
- ECM

* If any of the following components are replaced, a crankshaft position (CKP) Variation Learn Procedure must be performed. Refer to CKP System Variation Learn Procedure for the 2.0L engine.

- CKP sensor
- Engine replacement
- Any engine repair that disturbs the relationship between CKP sensor and the crankshaft reluctor wheel