Standard Procedure - Pcm/Skim Programming: Notes
WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
There are two procedures for transfering the secret key to the SKIM:
- When ONLY the SKIM module is replaced, the secret key is transfered from the PCM (NGC- gasoline engine) or ECM (Cummins - diesel engine) to the SKIM. The ORGINAL KEYS may then be programmed to the SKIM.
- When ONLY the PCM/ECM is replaced, then the secret key is transfered from the SKIM to the PCM/ECM. The ORGINAL KEYS may be used.
- When BOTH the SKIM and the PCM/ECM are replaced the secret key is transferred from the SKIM to the PCM/ECM, and NEW KEYS must be programmed.
NOTE:
Before replacing the PCM/ECM (depending on engine application), for a failed driver, control circuit, or ground circuit, be sure 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. relay 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 Diagnostic Trouble Code (DTC) has set.
When a PCM/ECM and the Sentry Key Immobilizer Module (SKIM) are replaced at the same time perform the following steps in order:
- Program the new PCM/ECM.
- Program the new SKIM.
- Replace all ignition keys and program them to the new SKIM.