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ATTENTION: HARDWARE TEST FOR 6-PIN BIKE-SIDE HARNESS THAT WILL OFTEN SOLVE YOUR ISSUES

kento_ftecukento_ftecu Posts: 637Staff User
edited January 10 in Bug Reports

NOTE: THIS TEST IS FOR THE 6-PIN BIKE-SIDE HARNESS. IF YOU HAVE A 4-PIN BIKE-SIDE HARNESS (THE PART NUMBER ON THE LABEL BEGINS WITH THE PREFIX "4P"), PLEASE USE THIS TEST.

The bike-side harness requires careful installation to insure a complete and error-free flash process. About 90% of the issues that cause error codes we see can be traced to a hardware connection problem. This test is more definitive than the software test interface that a lot of users have suddenly started trying to use after seeing it in a couple of posts; without the proper steps and looking at the correct data, all it does is confuse the issue.

This test is easy to do, and requires just a small jumper wire or paper clip, and a multi-tester.

Take the bike-side harness connector, and remove the weather-seal cap (or disconnect it from your USB Data Link cable). Looking at the face of the connector (opposite the side where the wires are inserted), determine where each color wire (there are four: Red, Orange, Yellow, and Black) pin is located. With your bike's ignition key turned off, use the small jumper wire or bent paper clip to jump the Red and Orange wire pins by inserting it into the respective pin locations on the face of the connector. Turn the ignition key on; if you hear your bike's fuel pump priming, that means you have a connection issue with either the Red or Orange wires (or both). Check them carefully to ensure that the pins are seated correctly (all the way into the connector, and that the crimped portions are facing up towards the connector's locking latch).

If you don't hear the fuel pump, then turn the ignition key off, then jumper the Red and Yellow wires. Turn the ignition key on; if you hear the fuel pump priming, then you have an issue with your Yellow wire. Check its connections carefully.

If you don't hear the fuel pump at that stage, take a multimeter and connect the Black and Orange pins. You should see a consistent 5V. Then connect the Black and Yellow pins. Again, you should see a consistent 5V. Anything less, or inconsistent readings, means that you have a problem with your black (ground) wire. Ensure that the eyelet is solidly connected to a metal surface on the frame; it must be metal to metal contact, no paint or clear-coated surfaces will allow a solid ground connection.

Comments

  • jfouch@live.comjfouch@live.com Posts: 11Verified User

    Okay I have completed This test, I actually performed this test of the wires when I finished wiring in the bike side harness, but I just did it again and everything passes. I’ve been an electrician and and avionics technician on aircraft for over 20 yrs, but we all make mistakes, so I’ve triple checked my work and all is square.

  • jfouch@live.comjfouch@live.com Posts: 11Verified User

    is There any other tests I can run or diagnostics?? When it’s in the analyzing RAM stage it takes between 6-8 minutes, could this be an issue? I bought this FT ECU because I’ve been locked out of 2017 Ri ecu and unable to change modes, settings, clock, etc, like many have when on rear stand, mine even locked me out once when I forgot to shut key off and killed battery, tired of taking it to dealership to get rid of check engine light, I want to be able to have access to programs for bike as I upgrade parts.

  • misterwolf1984@gmail.commisterwolf1984@gmail.com Posts: 1Verified User

    Both jumpered options prime my fuel pump. 2016 r6. The bike harness is

    A black

    B

    C

    D orange

    E yellow

    F red


    Definitely pinned according to the 2017 r6 sheet. I get no response error.

  • elr0718@hotmail.comelr0718@hotmail.com Posts: 2Verified User

    Just installed mine today. Had to do this test. My problem was that the black wire that is supposed to be attached to the bike wire harness and heat shrank, came loose inside the heat shrink wrap. I had to cut the wrap and reconnected it crimp it and re-apply shrink wrapped it. Works like a charm. 2020 Yamaha R6.

    -Ellery

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