BCM
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      After having the Security Module serviced, my door locks unlock/lock on their own. What can I check?

      1. Check Fuses and Relays: Inspect the fuses and relays related to the power door locks, as a blown fuse or faulty relay can disrupt the electrical current.
      2. Check Wiring: Loose or damaged wiring between the door lock components and the BCM can lead to intermittent or incorrect locking/unlocking.
      3. Check the door lock switch: The switch on the door panel is responsible for sending signals to the BCM to lock or unlock. A faulty switch can cause incorrect signals.
      4. After checking these components, attempt a hard battery reset. This will reboot and reinitialize all of the modules. Instructions are below.
       
      Hard Battery Reset Procedure:
       
      1. Disconnect the battery cables.
      2. Clamp the cables together with the terminals touching (off the battery!)
      3. Leave the cables maintained in this position for 30mins. and then re-install.
       
      HELPFUL TIP
      Whenever doing a hard reset (global reset) always remove the ground cable first then the positive cable. When reinstalling a battery or just the cables install positive first then attach the ground. It's always best to do it this way so there are almost no issues causing an electrical spark on a module in the vehicle.
       
      *This should clear any soft codes and communication issues with the vehicle’s PCI bus.*
       
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