I found this text using Google...
I purchased a OBD II reader and received a P0600 Communicationl Link error. I searched this forum and the internet and could not find out what the error actually meant. I called the OBD II instrument company and they emailed a electrical diagram. Basically it has to do with an error on the CAN Data Bus, the IFI control module (in fuel line injector module) or the RCL module (door lock??). The code was able to be cleared and did not come back (yet). Kind of a strange error code. PS-I could not clear the $%# SRS idiot light with the OBD II, after replacing the blinker (combination) switch and having to disconnect the air bag.
Mercedes Benz discussion forum - Benzworld.org
Peccavi, June 2010
