I have a problem witth MMCS in my car. The touch doesn't work cant get past the cautions screen.
I have a MMCS A04. Ive tried taking the fuse out and putting in back in no luck.
Any suggestions would be helpful.

 

I have the same issue and found that if I use a pen tip, I could touch the panel buttons as my finger didn’t work, I found that if I touched the tip of the pen at the edge of the bezel near the button but it had to be on the far left of the touch button, it seems the button touch screen has lost its calibration coordinates, also this problem is the same for the return arrow on top of screen, I had to use the pen tip and press it as close to the bevel and to the near left. I have also noticed all of the other touch buttons are off coordinates too but I can use my finger as they are not too close to the edges, so for now I carry a pen

 

thank you so much. I’ve recently bought a 2009 lancer aspire for my run around car. The wife has the newer suv. Got more money off as the head unit wasn’t working. Tried a few things off this forum but no dice. Then tried your trick with the pen and it worked. Co-ordinates seem all over the shop. So thank you very much. This will be fine until I get a replacement CarPlay unit. But now that can wait a bit longer.

(QUOTE)I have the same issue and found that if I use a pen tip, I could touch the panel buttons as my finger didn’t work, I found that if I touched the tip of the pen at the edge of the bezel near the button but it had to be on the far left of the touch button, it seems the button touch screen has lost its calibration coordinates, also this problem is the same for the return arrow on top of screen, I had to use the pen tip and press it as close to the bevel and to the near left. I have also noticed all of the other touch buttons are off coordinates too but I can use my finger as they are not too close to the edges, so for now I carry a pen[/QUOTE]

 

Touch screen out of calibration, so i cant get to secret menu. Sound cuts in and out at random. Whether its fm, bluetooth, radio. Doesnt matter. Touch screen has buttons that disappear randomly. 2015 Mitsubishi lancer se. Rockford fosgate touch screen