KEYLESS GO NOT FUNCTION
Asked by babylove8692 Mar 25, 2016 at 05:53 AM about the 2012 Mercedes-Benz M-Class ML 350 BlueTEC 4MATIC
Question type: Maintenance & Repair
Hi, I have a Mercedes Benz W166 ML350 BLUETEC 2012 year, the keyless go suddenly are not function at all, cant push button start, cant lock / unlock door by handle. I had scan with Xentry DIAGNOSTIC,but it cannot be read the data out from the keyless go control unit N69/5, it just show me the red word ' The control unit does not respond to the query from Xentry Diagnostics.' and below the red word ' Possible cause and remedies -The power supply of the control unit is not ok -The control unit is not standard equipment and for this reason it may not be installed. '
I also had check the fuse infront beside the engine and rear under the seat, that all are no problem.
Can you please help me how to fix it?
8 Answers
Sound like u have an aftermarket key fob I would love to see a pic of it if u have an aftermarket key fob the control unit and fuse are usually under steering wheel or the knee kick panel I only say aftermarket because to my knowledge that year mb didn't have remote start ....
SunshineGA answered 8 years ago
I have exactly the same problem. I want to replace the control module but do not know where it is located?? Under the rear seat or in the trunk under the spare??
Just happened to my car, 2012 ML350. It's the keyless go module. My mechanic getting part from Mercedes part and labor $830 :/
sterlinggee answered 6 years ago
I have keyless go, and would like to remove the module. Keyless go module is responsible for the keyless access as well, and there are quite a few cars getting broken into with this feature.
Which fuse is responsible for keyless entry function and where it is located?
HoustonBenz answered 5 years ago
2011 E350 with keyless go. Same problem. I found a replacement keyless go module but can't locate it on the car. I have checked all of the locations that are typical. In the trunk behind both side panels, under the hood near the battery. No module in site. Any other guesses?
It’s under the back replacement tire. I finally found it! Weird spot, right?!
