2000 s500 locks do not work left side
I replaced IR sensor in the left handle, the door control module and key remote. I brought it to the dealer for reprogramming, they told me it was the instrument cluster, NOT it's $1200 later!
I believe that the locks also work by radio frequency, which I don't think is working because you have to be on the side of the vehicle to open the trunk.
Trying to find anything on how the whole lock system works has been a royal pain. Alldata is useless.
Any way of checking the two systems? IR vs Radio Frequency?
Any help???


