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Discussion Starter · #1 ·
just purchased my second TMC unit and a cable that was very clearly marked as to pin locations. I checked the continuity of all pin locations on the wires and pins on the first installation and everything matched the indicated locations on the new cable, so I left the first one in place.

The new cable and directions are for an A6 so I used Paul's Audi Pages posting to double check the locations for the TMC/CAN cluster plug wires on a 2000 A8 and found my wires to be in the correct locations.

I coded the system (also subtracted 16000 because I originally had fac Nav) for BOSE, and steering wheel. But just as with the last TMC/CAN unit I have "no communication" with the cluster.

I don't know what else there could be to check. Any collective ideas?!!!
 

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Hello,

Do you have a +12v and ground on your TMC unit ? Have you check it ?

Il the power is ok so there is maybe a probleme with the unit, have you test to switch it with the second one ?

Tom-S3
 
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