2007 C6 A6 Sedan 3.2 CVT MMI Problem
I bought the car a couple months ago with the MMI completely dead. The car runs,drives, and looks great. A/C blows cold, everything but the MMI and trunk release switches work (key fob opens trunk so I dont care). The screen is completely dead and the control buttons do not light up. I scanned it with my VAGCOM 12.2.2 HEX CAN and did a Optical Bus test. Every single component showed electrical and optical ERROR. Deciding I did not feel like dealing with it I sent it to the only local Audi dealer. They had it for three weeks and said they couldnt figure it out.
Getting it back, I checked all the fuses three times and found the telematics fuse was blown. I found the bluetooth/tele module with corrosion all over it. I left the module unplugged, replaced the fuse, and did the optical test again. This time I found about 3/4 of the system showed "OK". I ordered a new module, went to plug it in and the fuse blew. I took the connector apart to find two wires in the larger of the two slides melted together. I replaced the larger portion in the 54 PIN electrical connector with a pig tail from a 2008 A6 , plugged in the replacement module, and replaced the fuse. Now I am at this point:
Control Module Part Number: 4F0 910 468 A
Component and/or Version: Gateway H11 0070
Optical Bus Diagnostic : Standard
Controller Electrical Optical
19-CAN Gateway OK ERROR
07-Control Head(High/D3) OK OK
0E-Media Player 1 OK OK
77-Telephone OK ERROR
47-Sound System OK ERROR
56-Radio OK OK
37-Navigation ERROR ERROR
Chassis Type: 4F (4F0)
Scan: 01 02 03 05 07 08 09 0E 15 16 17 19 27 37 42 46 47 4E 4F 52
53 56 5E 61 62 65 72 77
VIN: WAUAH74F27N092968 Mileage: 160650km/99823miles
00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
07-Control Head -- Status: Cannot be reached 1100
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
0E-Media Player 1 -- Status: Cannot be reached 1100
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
27-Ctrl Head, Rear -- Status: Cannot be reached 1100
37-Navigation -- Status: Cannot be reached 1100
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: Cannot be reached 1100
4E-Ctrl Head RR -- Status: Cannot be reached 1100
4F-Centr. Electr. II -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: Cannot be reached 1100
5E-Ctrl Head LR -- Status: Cannot be reached 1100
61-Battery Regul. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: Cannot be reached 1100
The MMI is still very dead and I am stumped as to where to go next. Although the modules electrically show "OK" other than the Navigation, the only module I can communicate with is the CAN Gateway. Basically, the only thing that changed after replacing the module was that the Telephone now shows "OK" electrically.:confused:
I bought the car a couple months ago with the MMI completely dead. The car runs,drives, and looks great. A/C blows cold, everything but the MMI and trunk release switches work (key fob opens trunk so I dont care). The screen is completely dead and the control buttons do not light up. I scanned it with my VAGCOM 12.2.2 HEX CAN and did a Optical Bus test. Every single component showed electrical and optical ERROR. Deciding I did not feel like dealing with it I sent it to the only local Audi dealer. They had it for three weeks and said they couldnt figure it out.
Getting it back, I checked all the fuses three times and found the telematics fuse was blown. I found the bluetooth/tele module with corrosion all over it. I left the module unplugged, replaced the fuse, and did the optical test again. This time I found about 3/4 of the system showed "OK". I ordered a new module, went to plug it in and the fuse blew. I took the connector apart to find two wires in the larger of the two slides melted together. I replaced the larger portion in the 54 PIN electrical connector with a pig tail from a 2008 A6 , plugged in the replacement module, and replaced the fuse. Now I am at this point:
Control Module Part Number: 4F0 910 468 A
Component and/or Version: Gateway H11 0070
Optical Bus Diagnostic : Standard
Controller Electrical Optical
19-CAN Gateway OK ERROR
07-Control Head(High/D3) OK OK
0E-Media Player 1 OK OK
77-Telephone OK ERROR
47-Sound System OK ERROR
56-Radio OK OK
37-Navigation ERROR ERROR
Chassis Type: 4F (4F0)
Scan: 01 02 03 05 07 08 09 0E 15 16 17 19 27 37 42 46 47 4E 4F 52
53 56 5E 61 62 65 72 77
VIN: WAUAH74F27N092968 Mileage: 160650km/99823miles
00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
07-Control Head -- Status: Cannot be reached 1100
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
0E-Media Player 1 -- Status: Cannot be reached 1100
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
27-Ctrl Head, Rear -- Status: Cannot be reached 1100
37-Navigation -- Status: Cannot be reached 1100
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: Cannot be reached 1100
4E-Ctrl Head RR -- Status: Cannot be reached 1100
4F-Centr. Electr. II -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: Cannot be reached 1100
5E-Ctrl Head LR -- Status: Cannot be reached 1100
61-Battery Regul. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: Cannot be reached 1100
The MMI is still very dead and I am stumped as to where to go next. Although the modules electrically show "OK" other than the Navigation, the only module I can communicate with is the CAN Gateway. Basically, the only thing that changed after replacing the module was that the Telephone now shows "OK" electrically.:confused: