For 1990-2009 cars

The following service procedures require either a programming or a setup event be 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 Service Programming System (SPS) .
2. Crankshaft Position (CKP) Variation Learn for 2.4L engine only--Refer to Crankshaft Position System Variation Learn.

### ECM Reprogramming

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

### Setup for Component Replacement For 2.4L Engine Only

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

If any of the following components are replaced, a CKP Variation Learn Procedure must be performed. Refer to Crankshaft Position System Variation Learn .

• | Engine replacement

• | Any engine repair that disturbs the CKP sensor or it's relationship with the crankshaft reluctor wheel

• | CKP sensor