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Unread 04-23-13, 01:21 PM
Mark Hislop Mark Hislop is offline
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Join Date: May 2002
Location: Aurora, IL (ARR)
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More than likely is that you've got a blown diode on the little signal processing board on the top center of your firewall. Or possibly a bad relay on the same board. The diodes are very easy to replace. I would disconnect them one at a time and check them first. There are a total of 4 of them, 2 for the front engine, and 2 for the rear engine circuits. There is one relay for each circuit. There is also a fuse for each circuit.
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Mark Hislop
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