Brad Clayton Posted April 21, 2012 Share Posted April 21, 2012 Ran into a good one the other day, 2003 F-350 no start. The IDM and PCM relays would chatter and had no communication with IDS. I hooked up the break out box and jumped the PCM relay to power and everything came on-line. Did some digging and found this: This is the central junction box. A new unit was swapped in and all was well. Note: problem occurred when a few too many lights were installed on the reverse lamp circuit. Quote Link to comment Share on other sites More sharing options...
Aaron Posted September 23, 2012 Share Posted September 23, 2012 How many is a few too many? Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted September 23, 2012 Share Posted September 23, 2012 Obviously not a FET circuit. Quote Link to comment Share on other sites More sharing options...
jimmy57 Posted September 27, 2012 Share Posted September 27, 2012 Yes, a FET circuit. Fries Every Time. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted December 8, 2013 Share Posted December 8, 2013 That SJB looks like it has some green corrosion going on too. Quote Link to comment Share on other sites More sharing options...
Aaron Posted December 9, 2013 Share Posted December 9, 2013 We have a couple guys on yellow bullet that pull up real old threads from time to time. Ita funny to see reactions to some of them. Quote Link to comment Share on other sites More sharing options...
Alex Bruene Posted December 9, 2013 Share Posted December 9, 2013 Does it matter how many lights they added to the circuit as long as they left the fuse at the correct amperage? Those don't have any common issue that allow water to penetrate the fuse panel, do they? Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted December 9, 2013 Author Share Posted December 9, 2013 And there is the rub. You can put a paper clip across the fuse and everything would be hunkydory. However if you start overloading the circuit with a dozen extra bulbs and don't modify the circuit with a relay or three, and monkey around (no offense Aaron) with the circuit protection, then where are you? Your calling a tow truck cause your truck wont start and your down for days and out 100's of clams. Quote Link to comment Share on other sites More sharing options...
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