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  1. #1
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    Lightbulb 2016 F3L Cruise control issues

    I have a little over 12k miles on my bike and recently I had noticed that my cruise control would randomly kick out. This morning on my way into work it did the same thing and then it just quit working. When I would press Set the indicator would go green and then back to grey. After a few times of trying it quit working altogether. I have installed a Safe-turn Smart brake system and I am wondering if it might be interfering with the cruise by sending a back feed thru the brake light circuit. I am going to disconnect that system before I head home today to see if that makes a difference. I am wondering if anyone else has had a similar situation?
    2016 F3-Limited , Carbon Black

  2. #2
    Very Active Member JP58's Avatar
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    If you messed with the brake pedal switch installing you accessorie. I would check that first to make sure you have proper gap. If that switch is even barely touching it will make cruise act up even if brake lights not on.
    2018 F3 Limited , Oxford Blue

  3. #3
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    I never touched the switch. The smart brake system taps in to the brake light circuit under the seat. It flashes the brake lights when you are slowing down with out touching the brakes.
    2016 F3-Limited , Carbon Black

  4. #4
    Very Active Member ARtraveler's Avatar
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    I suspect something to do with the install of the accessory. Any brake action is supposed to disconnect the CC but not shut it all the way off though.

    Currently Owned: 2019 F3 Limited, 2020 F3 Limited: SOLD BOTH LIMITEDS in October of 2023.

    Previously : 2008 GS-SM5 (silver), 2009 RS-SE5 (red), 2010 RT-S Premier Editon #474 (black) 2011 RT A&C SE5 (magnesium) 2014 RTS-SE6 (yellow)

    MY FINAL TALLY: 7 Spyders, 15 years, 205,500 miles

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    2020 F3L , Magma Red

  5. #5
    Very Active Member JP58's Avatar
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    I would still check for proper adjustment of brake pedal switch. That is the most common problem when the cruise dosen't work.
    2018 F3 Limited , Oxford Blue

  6. #6
    Very Active Member BLUEKNIGHT911's Avatar
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    Quote Originally Posted by Sleeve66 View Post
    I have a little over 12k miles on my bike and recently I had noticed that my cruise control would randomly kick out. This morning on my way into work it did the same thing and then it just quit working. When I would press Set the indicator would go green and then back to grey. After a few times of trying it quit working altogether. I have installed a Safe-turn Smart brake system and I am wondering if it might be interfering with the cruise by sending a back feed thru the brake light circuit. I am going to disconnect that system before I head home today to see if that makes a difference. I am wondering if anyone else has had a similar situation?
    After reading ...other answers ..... my question is ..... did this problem occur immed. or soon after the access. install ..... ???? .... Mike

  7. #7
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    I have had my smart brake module installed for about 6 months now. I noticed the other day when I finished parking my brake lights were still flashing. After work and before I drove home I disconnected the ground to the module and the cruise control started working again. I am going to reach out to the brake module manufacturer and see if they have had this issue before. If not and they don't have a fix for it, I will build a circuit that will isolate anything from back feeding the brake light circuit to the cruise control.
    2016 F3-Limited , Carbon Black

  8. #8
    Ozzie Ozzie Ozzie Peter Aawen's Avatar
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    It might just be that the spring that's meant to return the pedal &/or associated brake light switch to the fully off position has just become a little weak over time - this was a common problem a while back, altho not seen quite so often in recent months....

    But still, if that spring isn't pulling back quite as hard as it once did, your brake lights will probably stay on longer than they once did, and that'll have nothing to do with the module or even the micro-switch.... it's just a tired spring!

    Check out the info on the pic below - that's a pic of the spring many here have used as a 'helper' for their 'tired brake return springs'.
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    2013 RT Ltd Pearl White

    Ryde More, Worry Less!

  9. #9
    Very Active Member IdahoMtnSpyder's Avatar
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    Quote Originally Posted by Sleeve66 View Post
    I have had my smart brake module installed for about 6 months now. I noticed the other day when I finished parking my brake lights were still flashing. After work and before I drove home I disconnected the ground to the module and the cruise control started working again. I am going to reach out to the brake module manufacturer and see if they have had this issue before. If not and they don't have a fix for it, I will build a circuit that will isolate anything from back feeding the brake light circuit to the cruise control.
    If the brake light wiring is like that on the RT, and I don't know why it wouldn't be, a wire connects to the brake light circuit between the brake light switch and the brake lights. That wire goes to the ECM and provides the signal to cancel the CC and who knows what else. Your module activates the brake lights, right? That means the module is feeding current into the ECM making it think you have stepped on the brake. The only way to prevent the back feed is to put a diode into the bike wire going to the brake lights and connect your module between it and the brake lights.

    Also, as others have said, don't discount the possibility the brake light switch isn't working properly.

    2014 Copper RTS

    Tri-Axis bars, CB, BajaRon sway bar & shock adjusters, SpyderPop's Bumpskid, NBV peg brackets, LED headlights and modulator, Wolo trumpet air horns, trailer hitch, custom trailer harness, high mount turn signals, Custom Dynamics brake light, LED turn signal lights on mirrors, LED strip light for a dash light, garage door opener, LED lights in frunk, trunk, and saddlebags, RAM mounts and cradles for tablet (for GPS) and phone (for music), and Smooth Spyder belt tensioner.
    2014 RTS , Copper! (officially Cognac)

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