after installed security system in city 2010 one of the rear door lock not on/off with key or with remote. Other system is working fine 3 doors working fine please help out
What is the problem may be main driver door have 4 cable that control the door maybe one of the cable cut thats why not working rear door lock on/off with key and remote
the original motor wont give up so easilly probably wiring issue from the main motor as you already pointed out