I don't know the date of your question and I am sorry if it is too late. This is really easy. The switch is called a "turn signal switch assebly" which is an interesting name since it does not have the turn signal switch inside it and is simply located mechanically on the turnsignal switch. You will see a small panel located behind the turn signal switch assembly and under the tilt control. You can pop this off using your hands or use a small screw driver if you need to. you will see the small wireing harness behind here and you can see where there is a connector. You need to diconnect this first so pull on it to separate it from the post and diconnect the wire connector. Then turn the base of the swtch assembly toward you and pull. It will disengage the plastic part. then rotate the metal rod until it pulls out also. You will have to figid with it a bit, but this is how it is done.
The windshield wiper relay switch, on your 1999 Cadillac Deville, are located mounted to the firewall in the engine compartment. The relay switch will be next to the windshield wiper motor.
What is location of switch interrupter on 2001 Cadillac deville
how do you take out a headlight switch's in a 1998 cadillac deville?
How do I replace the windshield wiper switch?
Start by disconnecting the battery.
How do I change the wiper seitch on 2003 cts cadilac
The 1999 Cadillac Deville headlight relay switch can be found in the fuse box. The headlight relay switch will be in the third column, second from the top.
Where is the switch located for the back up lights on a 2000 cadillac daville
there will be a separate heated windshield switch below the window lock switch.
in the steering column
On the steering column????
Take it to a shop