Aparently it is a fast job according to the agents. I am from SA and the backup on this vehicles is very poor so I got me a Workshop manual and fixing everything myself. Some times it is pretty difficult to do. I am going to remove mine and see if it possible to replace the resistors, so if you give two days I will give you a full report.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix cars.