These are the resistances that are placed across the common/ground wire (pin 17) & the other 2 wires (pins 16 & 20) when the various buttons are pushed.
If your unit was looking for resistance, and these were assigned/learned, then it should work. If your unit is looking for voltage changes, ie it places a voltage on the wires & the variation when a button is pushed determines the function, then maybe some of these are out of spec & additional resistors are required. It would be helpful at this point to have a manual for your system.
There's a guy with an M35 that had a similar issue with only some of the audio controls working (not supplied by me, btw) so it could just be a case of 'it is what it is'....