2001 Cadillac DeVille BaseFACTORY OEM SERVICE PROCEDURE

Power Window System: Operation: Notes

Vehicle is equipped with power windows controlled by door modules. Each passenger door window can be operated, either from a power window switch built into the Driver Door Switch Assembly (DDSA), or from a power window switch mounted on its associated door. Driver's door window can be operated only from driver door power window switch built into DDSA.

When Driver Door Module (DDM) receives a window switch request from DDSA, or any passenger door module receives a window switch request from the DDSA, or any other window switch, appropriate door module examines request and checks to see if it has received a message from any other control module prohibiting window movement. If conditions are correct, and no prohibitive messages have been received, appropriate door module then supplies power and ground to its associated window motor opening or closing window as requested.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.