As of 2000 model year Fords(PATS) , just having a spare PCM with a key programmed to it will not work. The key id's are programmed into the pcm , but the pcm will also check on the SCP network and ask either the ICM (instrument Cluster Module) or the HEC (Hybrid Electronic Cluster)if it agress with the key id . The other modules(ICM or HEC) must also have the PCM serial number stored and the pcm must have the HEC or ICM number stored.
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As of 2000 model year Fords(PATS) , just having a spare PCM with a key programmed to it will not work. The key id's are programmed into the pcm , but the pcm will also check on the SCP network and ask either the ICM (instrument Cluster Module) or the HEC (Hybrid Electronic Cluster)if it agress with the key id . The other modules(ICM or HEC) must also have the PCM serial number stored and the pcm must have the HEC or ICM number stored.