DeVille V8-4.6L VIN Y (1998)
Body Control Module: Description and Operation
Door Lock/Unlock Function
The Body Control Module (PZM) energizes the door lock/unlock relays. This event occurs in the following conditions:
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The PZM receives a command from the door lock switch input.
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The PZM receives a message through the class 2 serial data line from the RFA.