Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
Keyless Entry Receiver: Description and Operation
REMOTE CONTROL DOOR LOCK RECEIVER MODULE SYSTEM
The remote control door lock receiver module system may also arm and disarm the CTD system. When the remote control door lock receiver receives a
door lock or an unlock signal from the key fob, the remote control door lock receiver sends a message to the BCM. The message orders the BCM to
perform the appropriate door lock/unlock command. The BCM detects the message and performs one of the following functions:
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Locks the doors and enters the armed initiated mode
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Unlocks the doors and enters the ready-to-arm mode
