briankstiles

Hello all, new here and hoping to get some ideas or a path to go on. I have a 99 clk with memory. Both my front seats are inop, with no clicking. I am a engineer by trade. The relays are not energizing, I have power down to the modules, and all the fuses are good. I have checked for a short to ground and power on the canbus line, and don't detect either. I have had the control module out from under the drivers seat and looked at the c/b and seen nothing out of the ordinary (no smoke released). Is there a way of just testing the module. If I hit a memory button on the drivers door, the mirrors respond, but nothing eles. Could be anything else but 2 modules went bad at same time?

tripleblk

I have beat on the motors under the seats and they have started working again. I have to do this about 3 times a year.

cindyclk

you're sure you checked the trunk fuses?

briankstiles

Thanks for the responses, i can pull the plugs for each motor and apply the voltage to the correct wires, for each direction required, and they all work just fine. The fuses, I have checked under the little cover in the trunk, (fuses) there good. Any other ideas. Does the canbus transmittion go from the door into the seat module? Or is it controlled through the sam? Thank You!!!!!

briankstiles

I have even taken it to Mercedes and they said that there tester said they where not there. They wanted to replace the harness of the car and the 2 control modules. I don't even want to tell you how much that was. It was sell car. lol But I quite like it.

jreddyroc

lots of are cars have these probs iv had mine for 2 years not working and its only the bottom part that go doesnt work forward and back