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Message: <blockquote data-quote="busa4" data-source="post: 40458" data-attributes="member: 4346"><p>i have a wiring diagram.  it shows 2 diodes but it doesnt appear that they would stop charging if they failed.  they would most likely make the electrical system go nuts if they failed.  the alternator sends charge voltage to both relays. the alternator output wire goes to the glow plug relay center terminal then gets jumped to the starter relay side terminal. then it goes to the connecter in between your seat then to your switches.  check the connectors next to the seat. mine was corroded a bit.</p></blockquote><p></p>