Operation CHARM
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Cadillac
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1997
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DeVille Concours V8-4.6L VIN 9
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Body Control Module
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Description and Operation
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Body Control System Circuit Description
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Door Locks
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Door Lock/Unlock Function
Door Lock/Unlock Function
The PZM is responsible for energizing the Door Lock/Unlock relays. The relays will be energized whenever the PZM receives a command from the Door Lock Switch input or a Class 2 serial data message from the RFA.