Hi. Where do I start on fixing this problem? the MFD doesn’t get data from the engine or temperature from the climate control. EMV OK Audio HU. NCON but I have an aftermarket unit G/W NCON under the LAN Monitor sub menu I have EMV CHEK audio H/U. NCOn g/w NCOn Where Do I start fixing this problem?
My first question would be 'when did this problem begin?' Did you install the aftermarket audio or a previous owner? Did everything work prior to the installation and afterward? Was the MFD removed for working on the audio? Have you already verified all the connectors supposed to be connected to the MFD actually are connected? It can be easy to miss one, depending on the model. Did the audio installation require cutting/splicing of wires or was it all premanufactured pigtails/adapters?
OK problem solved. My 68 ohm resistor I installed for the Aftermarket radio had a loose connection and fell out when I checked it. I soldered it properly this time. So far everything is Ok including the self check from the MFD unit. So. Be sure to solder and not wrap the wires together like I did the first time. It lasted 6 months. yuck.