How can you tell if a window regulator is broken or if it might be the motor?

To determine if a window regulator is broken or if the motor is At Fault, try operating the window switch. If you hear a clicking sound or the window moves slightly but not fully, the motor may be the issue. If there’s no sound or movement at all, the regulator might be broken. Inspecting the regulator for any visible damage or obstructions can also help diagnose the problem.