Standard Procedure - Pcm/ECM/SKREEM Programming: Notes
WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before replacing the Powertrain Control Module (PCM) or Engine Control Module (ECM), be certain to check the related component/circuit integrity for failures not detected due to a double fault in the circuit. Most PCM/ECM driver/control circuit failures are caused by internal component failures (i.e. relays and solenoids) and shorted circuits (i.e. pull-ups, drivers, and switched circuits). These failures are difficult to detect when a double fault has occurred and only one DTC has been set.
When a PCM, or ECM, and the Sentry Key Remote Entry Module (SKREEM) on vehicles equipped with the Sentry Key Immobilizer System (SKIS) are replaced at the same time, perform the following steps in order:
- Program the new PCM or ECM.
- Program the new SKREEM (also sometimes referred to as the Wireless Control Module or WCM).
- Replace all ignition keys and program them into the new SKREEM/WCM.