Mikew213

Good evening,

I have been stumped with a problem that maybe someone can help.. my center control and my touchpad both stopped working…I am almost sure nothing leaked on them but I find it strange that both stopped working.. on the center control switch only the hazard lights button works. I can’t access any other buttons.. pls help


Nothing works accept the hazard lights button

konigstiger

Check f331 (5A) @ interior fuse panel if fine, pull for several minutes in an attempt to reset. If this fails have someone pull codes using Xentry (MB diagnostics).

Mikew213

Sorry I left out that info, I checked that fuse… I just fine it wired that both aren’t working… it’s 2 different connections

Mikew213

I also ran through xentry and no fault codes… the lights on the buttons aren’t laminated, only the hazard light button

VII

Check power delivery at console plug

VII

​​​​​​If I had to guess your problem is on CAN A conection as the hazards work through the front SAM IIRC.

Mikew213

This is the connection to the center control, is it suppose to be missing a pin?

VII

It could be, not all connectors are used at 100%.

VII

With xentry can you communicate with the control unit?
Any CAN errors?

Mikew213

Where can I locate that module at?

VII

Don't have xentry Sim available here, front central operating unit. Connected through CAN A.

VII

It might also be under comand control panel.

Mikew213

I can’t find the switch to test here

VII

Yes it's not going to be under the front SAM

VII

Look for telematics, comand or interior CAN

Mikew213

VII

Check those two, you are looking for A40/9

Mikew213

I don’t see any

Mikew213

Ok let me check

Mikew213

There is no a40/9

Mikew213

Mikew213

VII

Yes that's not good
Have you had anything coded recently?
It should not have changed to not installed on its own

konigstiger

Check your email.

Mikew213

Ok just an update something I noticed… I took the whole center console out today and look at what I noticed.