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  1. S

    [Solved] Error 04 on Bafang DP C07.UART / Surface 604 Shred - how to replace throttle?

    Problem solved! After hooking up my wife's throttle, everything is working as expected (tested here [1]). The mistake I made was assuming that disconnecting my broken throttle should fix it, but that wasn't the case :(. Somehow, the motor won't come on at all when the throttle cable is...
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    [Solved] Error 04 on Bafang DP C07.UART / Surface 604 Shred - how to replace throttle?

    Yeah, it's the exact same controller, but I agree that starting back from my old controller is a good idea. Haven't tried this yet, but good thing to check! No, but that's a good idea too. Thanks for the advice, will give this a shot! The only thing left to do is figuring out which wire is...
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    [Solved] Error 04 on Bafang DP C07.UART / Surface 604 Shred - how to replace throttle?

    Another quick update - I ordered a replacement controller from Surface 604, installed it, but the bike's still dead (in the sense that the head unit turns on, but engine won't kick in with neither throttle nor pedal assist). Next steps, I'm planning to check the wiring (it sounds like battery...
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    [Solved] Error 04 on Bafang DP C07.UART / Surface 604 Shred - how to replace throttle?

    Here's a quick update. I hooked up the hub motor of my bike to my wife's controller and confirmed that the motor works fine [1]. Also swapping batteries didn't change anything, so I think the most likely culprit is the bike's controller [2]. I didn't see anything wrong with the cables going in...
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    [Solved] Error 04 on Bafang DP C07.UART / Surface 604 Shred - how to replace throttle?

    Oh my, you're absolutely right (can't believe I missed this). It was a bit dark when I took the picture, so I went back to look closely and indeed, what I was looking at is not the throttle cable. The throttle is next to the controller, but has a separate cable that doesn't feed into the...
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    [Solved] Error 04 on Bafang DP C07.UART / Surface 604 Shred - how to replace throttle?

    Thanks for the fast response! I don't see a connector between the two sides (here's a picture [1] for future reference). I'll try to open the display first (unless anyone else here in the forums has a better idea) and see where that takes me. Now, there's one more thing I should mention - I...
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    [Solved] Error 04 on Bafang DP C07.UART / Surface 604 Shred - how to replace throttle?

    Hi all, Half way through a steep uphill climb (on support level 5), my motor shut off and now I'm getting an Error 04 on my display [1]. I have a 2018 Surface Shred with a Bafang DP C07.UART display. After searching around a bit, I found Bafang documentation on Error 04 (link) that suggests...
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    Hall effect sensor Surface604 Shred (Bafang RM G360)

    Thanks for your quick response! I'll be sure to check the connections before touching the halls.
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    Hall effect sensor Surface604 Shred (Bafang RM G360)

    I started having issues with my Surface604 Shred (2018). When using the throttle, the engine sometimes cuts out (although it works fine with pedal assist) and at medium speed (even when pedaling) I'm getting a strong vibrating noise that stops immediately when the engine turns off (e.g. when...
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