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FJR Motorcycle Forums
Technical & Mechanical Problems
Trip Meter Reset upon startup?
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<blockquote data-quote="ionbeam" data-source="post: 407354" data-attributes="member: 277"><p>The needles only sweep because they were commanded to do so by the ECU. The only time the ECU should sweep the needles is when it is doing a first power-up test. If the bike is already running and the ECU sweeps the gauges, it means that the ECU had received a quick power interruption. It smells more and more like loose cables at the battery or a loose engine block ground.</p><p></p><p>While the starter can draw too much current and cause the odo to reset it won't have anything to do with the gauges sweeping after the engine is running.</p><p></p><p>There is an outside chance that the ECU connector(s) may not locked in place or may not be fully seated.</p><p></p><p>[unlike gauges from days past, the gauges in the FJR are driven by digital signals, not by straight DC voltages.]</p></blockquote><p></p>
[QUOTE="ionbeam, post: 407354, member: 277"] The needles only sweep because they were commanded to do so by the ECU. The only time the ECU should sweep the needles is when it is doing a first power-up test. If the bike is already running and the ECU sweeps the gauges, it means that the ECU had received a quick power interruption. It smells more and more like loose cables at the battery or a loose engine block ground. While the starter can draw too much current and cause the odo to reset it won't have anything to do with the gauges sweeping after the engine is running. There is an outside chance that the ECU connector(s) may not locked in place or may not be fully seated. [unlike gauges from days past, the gauges in the FJR are driven by digital signals, not by straight DC voltages.] [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Trip Meter Reset upon startup?
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