waldo22
Veteran Member
Some answers...
Again, MFD "D" radio portion is NOT CAN compatible. If you want to use steering wheel controls with it, you have to use the older 452 relay (I know it seems like 451 should be older, doesn't it???) and make sure the REM wire from the Green 6-pin connector on back of Navi is hooked up to pin 5 of the relay, and make sure that S-Cont (switched 12V or Ignition voltage, whatever you want to call it) is hooked up to pin 12 of the relay, and the ILLUM wire (for illuminating the buttons) is hooked up to pin 15 of the relay. This is the ONLY WAY to get steering controls to work with MFD "D", and it WON'T WORK with the 451, only the 452. According to Lito, this won't work with the MFD "G" as the REM output is disabled. The only way to use 451 is to have a MFD "G" and use a TMC box, otherwise it won't work.
Here is a post I wrote on this:
http://forums.tdiclub.com/showpost.php?p=1332661&postcount=36
Hope this helps,
Wes
Sometimes people are too quick to say "can't" The NAVI portion of the MFD D and G both can output CAN signals through pins 13 and 26 of the 26-pin connector, so that is why your TMC gets info from the Navi D, however the RADIO portion of the MFD D uses 3LB for controlling Illumination, Ignition on/off, and remote volume/scanning control, and is not CAN compatible, whereas the MFD G uses CAN for these functions and doesn't need an ILLUMINATION or REMOTE wire in order to control these functions.People said earlier that I could not use an TMC module through the CAN gateway with my MFD version D. I did this without problems at all.
No! Don't confuse the Navi portion of the MFD with the radio portion. These MFD units are really two separate units in one. The navi portion of both D and G are compatible with CAN, which is why your TMC works, but the radio on the D is not. You can see by looking at the sticker on top of your nav on the pinouts that D does support CAN through the 26-pin connector, which is for the Nav portion ONLY. The power connector has no wires for CAN+/-, only S-cont, K-Wire, ILLUM, 12V, Safe, Ground, GALA, and Tel Mute. If it supported CAN, it would have the CAN+/-, and wouldn't need a K-wire for diagnostics or the ILLUM wire since that information is provided over CAN. I think S-cont info (whether ignition is on or off) is given over CAN as well. Navi G's radio should support remote control over the CAN, but ONLY SINCE you are using your TMC box to translate CAN commands into the language that the 451 is speaking. Navi G should also support control over the 3LB (that is to say the "REM" wire). EDIT: according to Lito (Tongsli) this is not true, and the 3LB controls are DISABLED on navi "G".Is it possible to use remote radio functions through CAN (module 451) with a MFD version D ? Is the MFD version D programmed to handle this kind of signals for remote operations?.....The MFD version D is compatible with both 3LB and CAN. Is this right ?
Again, MFD "D" radio portion is NOT CAN compatible. If you want to use steering wheel controls with it, you have to use the older 452 relay (I know it seems like 451 should be older, doesn't it???) and make sure the REM wire from the Green 6-pin connector on back of Navi is hooked up to pin 5 of the relay, and make sure that S-Cont (switched 12V or Ignition voltage, whatever you want to call it) is hooked up to pin 12 of the relay, and the ILLUM wire (for illuminating the buttons) is hooked up to pin 15 of the relay. This is the ONLY WAY to get steering controls to work with MFD "D", and it WON'T WORK with the 451, only the 452. According to Lito, this won't work with the MFD "G" as the REM output is disabled. The only way to use 451 is to have a MFD "G" and use a TMC box, otherwise it won't work.
Here is a post I wrote on this:
http://forums.tdiclub.com/showpost.php?p=1332661&postcount=36
Yes, it controls both, but I imagine that if you don't hook the cruise wires up to the 451/452 it will function from the stalk as previously, but you will have useless cruise buttons on the wheel.Do the 451 and 452 module also controls cruise functions ? Or is it only the radio functions it controls ?
Hope this helps,
Wes
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