Brad Clayton Posted June 25, 2011 Share Posted June 25, 2011 Seems like a cut and dry PATS key issue or handshake between PCM-IC? If you encounter this and can't communicate with any module on the network, unplug the trailer brake control module and retry the network test. If everything is back online the TBCM is at fault and should be swapped out. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted June 25, 2011 Share Posted June 25, 2011 Are we seeing a pattern here? The data link diagnostic procedure has you disconnect modules and plug them back in one by one with module communication failures. Just sayin. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted June 25, 2011 Author Share Posted June 25, 2011 The TBC is the only one I would unplug, lots of 'em taking a dump. Quote Link to comment Share on other sites More sharing options...
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