Compass 2WD L4-2.4L (2008)
Engine Control Module: Service and Repair
Powertrain Control Module - Removal
REMOVAL
USE THE SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (PCM) WITH THE VEHICLES ORIGINAL
IDENTIFICATION NUMBER (VIN) AND THE VEHICLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC
TROUBLE CODE (DTC) MAY BE SET.
To avoid possible voltage spike damage to PCM, ignition key must be off, and negative battery cable must be disconnected before unplugging PCM
connectors.
1. Disconnect negative battery cable.
2. Unlock and disconnect the electrical connectors from PCM.
3. Remove the air cleaner box.
4. Remove the three mounting bolts.
