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S866 Controller issue(?) or voltage

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38 minutes ago, Tefoonez said:

Well it was .91 on all three on the black probe and the red probe it started at 13.6/15.1/21.2 and consistently started to rise

Dan

I getting confused now. I have 2 questions:

  1. What do you see on the meter when you short the probes together?

  2. How come you're showing a reading of 1 in your photo, but you're now saying you have 0.91 for three readings and 133.6 to 21.2 on the other three?

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19 minutes ago, D8veh said:

I getting confused now. I have 2 questions:

  1. What do you see on the meter when you short the probes together?

  2. How come you're showing a reading of 1 in your photo, but you're now saying you have 0.91 for three readings and 133.6 to 21.2 on the other three?

So the 1 reading was just the meter with both probes in but not touching, attached is with probes attached

IMG_5278.jpeg

16 minutes ago, Tefoonez said:

Probes touching…

OK, here's where we are. The three higher readings are where they should be. The three .91s are low, but not low enough to say that the MOSFETs are blown, so I think we have to declare them OK as far as the display issue is concerned.

Next test is to check the 5v. You can do that by putting your black probe on any black wire and the red probe on any of the thin reds going to the pedal sensor, throttle or motor. It should be anything above 4v and below about 5.2v.

Assuming that's OK, there's something you can try. Locate the connector that goes to the LCD. Disconnect it. Use a bit of a paper clip or short piece of thin wire to make a bridge between the red and the blue wires. Be careful not to let it touch any of the other wires because it will do damage to them. Like that, the controller will be switched on, even though you can't see it, the throttle should work and the pedal assist should also work, but only on level 1. If it doesn't work like that, report back.

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