One problem related to wiring has been reported for the 1997 Cadillac Deville. The most recently reported issues are listed below.
The consumer noticed a noise emanating from under the left floorboard. Overtime, the minor noise became a loud noise which had come from the traction control system. This problem would happen intermittently upon acceleration. The mechanic attempted to repair the problem for the past two years. The vehicle would also experience a complete lost of power assist braking, and at times, the vehicle would lose drive train power causing the vehicle to coast through an intersection. The consumer have experienced this problem on a daily basis. The dealership was aware of the problem because they had secured the plug wires for induced voltage on the speed sensor wiring harness, a year or so later, the dealership replaced the electronic brake and or the traction control module.