![]() The ABS and compass modules are connected according to these schematics. I found this, page 23, cab J1939 compass and ABS effects. ![]() The compass module was blowing the codes. I should have the new module this week, I will know for sure once I install it. And here is the kicker, it is tied directly in to the datalink that also controls the ABS module. Near as I can figure, this compass module has been dying a slow death. ![]() The ABS trailer light would sometimes come on, then it started as a regular thing, then the tractor ABS started, then we got to the situation I have now. I believe it has had issues from the day I bought the truck. (06-13-2016 )Waterloo Wrote: Bill, you got me, but all the problems went away when we swapped it out as did the codes.
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