UK Car Repair Questions? Ask a Mechanic for Answers ASAP
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
With all of these doors you have above acting up this doesnt sound like a lock asembly itself at fault.This sounds like an issue with one of the SAM control units/ECU's acting up.I have seen the front SAM cause issues like this here needing replaced to correct this fault.Once it is replaced a dealer or authorized repair center has to program it to operate properly with an SDS machine plugged into your vehicle.
What has to be done from here is to have the fault codes checked to see what codes are set.This needs done with either a dealers SDS machine or a scan tool that will plug in and communicate with all computers to see what codes are set.Once this is done any codes set will need diagnosed to locate and repair the fault here.If you can get the codes read out and post them here this will help.
The issues with the rear tailgate is usually the latch itself.This is a common component that was known to act up and fail causing the tail gate pull in issue here.There is a slight chance this latch on the tail gate acting up may be causing the other lock issues with a signal fault from the latch in the tail gate and that the tail gate latch itself may be the only component needing replaced.I have had to replace this latch several times before on this model for electrical issues similar to this here.
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O.k.,let me know what codes they come up with here and if you need anything else.