Re: Yamaha Trim Gauge Flashing
I have already:
1. Key on
2. Gauge powers up, goes through self check, bars start at bottom go to top, fall to bottom, rise to top, last segment flashes.
3. Engine down, top segment flashing.
4. Engine moved to full up, still flashing.
5. Checked sender and cam. Cam broken, removed.
6. Manually moved sender, no change.
7. Unplugged 4 wire harness (pink, black, orange, gray) from engine and gauge and plugged in new harness (had a new one on the shelf from another project). No change.
8. Removed sender from engine and manually moved sender. No change.
9. Plugged sender directly into gauge no harness, no change.
10. Ran ohms test on sender and tester responds to changes in sender position. (Waiting on Yamaha Shop Manual to see if there are test values for sender).
10. Instrument techs at the refinery I work at are baffled as to whether the gauge or the sender has died. (Been using them as backups to make sure I am running tests correctly)
11. I have been doing this type of troubleshooting for 40 years, never taken this long to solve a problem.