99 sl500 heated seats
 

I checked all fuses under hood & in trunk all ok. Lites go on forboth seats but no heat in either. Please help. mike122470@aol.com

Not difficult to troubleshoot
 

The system consists of the pair of switches in the center console, a control unit located under the passenger footrest, and a pair of heating elements in each seat. You will need a voltmeter to check supply voltages to the controller, the wiring between the switches and the controller, and the outputs to the heating elements. Post a reply if you want specifics....