bafang shift sensor troubleshooting


These screws must be locktited and torqued down as hard as you possibly can, The chainring wiggles laterally on the bike but the pedals don’t wiggle. The gear sensor senses when you are shifting and what direction you are shifting in and it cuts the power for an appropriate period of time for the shift … The motor itself is physically larger and just under 1kg heavier and it has external cooling fins that aid with heat dissipation. When there is no load on the battery the voltage will quickly recover. Product Description: 1、This is a sensor patented by Mishine which can detect the action when rider shifted the gear on eBike, 2、a signal will be generated immediately and cut the power during gear shifting process. However they were completely out of stock with no idea on when replacements would be available. How Long Does an Air Charge Temperature Sensor Last? 1.8FUN 48v 1000w mid drive motor BBSHD bafang bbs motor 2.Brake lever 3. Signal Output: Pulse duration 0.5s. I’m a big fan of testing the easy stuff first and the BBS02 runs fine without the ebrake connectors. ive just clocked up about 11k on my bbs02 since march 2019. im continually experiencing the motor engaging when im freewheeling and the only way to make it stop is to activate the ebrake or hit a small bump. If the windings have burned out usually you can smell it for a short period of time after they fry. Am I wrong? If you are having continual chain problems where the chain keeps slipping off the chainwheel no matter how you adjust the tension then you should swap the chainring out to a Raceface Narrow\Wide or a Lekkie Bling-Ring. Buy 2 identical drive units from the get-go. PAS level 7-9 are plenty strong not to use throttle too much. This is for all the motors. i posted the mods below. Bafang had a run of BBSHDs with a large number of failing displays during early 2016. I had 2 controllers act in strange ways. As described, this sensor is used to monitor the speed of the transmission’s input shaft. If you are unlucky enough to have this happen then most likely the nylon gear has failed. checked all connections. It could also be a failed throttle where the hall sensor has broken loose and is activating without the throttle being activated. New Electric Bike Shift Sensor For Bafang Mid Drive Motor. Symptoms of a bad or failing engine knock sensor include slow acceleration, reduced fuel economy, and the Check Engine Light turning on. Did my controller overheat and shut down or is the battery dead? Protection circuit: Short Circuit & Polarity Reversed Protection-. If your speedo magnet is gone the BBS02 still works just fine and if you want to shift PAS levels up or down just tap the ebrake and the 21 error will disappear and you can move up and down PAS levels for a few seconds before the error appears again. Most of my BBS02 units have a temp probe installed on them, the instructions for doing that are here. Check the easy stuff first – like ebrake connectors. The motor stator is 66% larger than that of the BBS02, and it runs at 130-150rpm vs 120rpm for the BBS02. No One Gives A Rat's Ass About Your 'Street Legal' Ebike : Build Something Awesome. How Long Does a Transmission Filter Last? ( Log Out /  There is a 13 minute video located here of a BBS02 breakdown that shows all the steps for complete disassembly by Guillaume Devot who somehow manages to keep his workbench impossibly clean the entire time. It could also be bad phase wires between the controller and motor. Then you put on the rubber washer and tighten down the 2nd lock nut against the first lock nut. It is 3 pin male connector to connect the Bafang Mid Drive. After several hundred hours of beating on the BBS02 with temp probes hooked up you will have a much better idea of what the drive units like and what they don’t like. Take a BBS02 drive unit into almost any bike shop that doesn’t specialize in ebikes and the owners will just probably shrug their shoulders and tell you that you’re on your own. BAFANG Mid-Drive Motor Gear Sensor Bafang 8Fun Electric Bike Shift Sensor BAFANG Shift Sensor eBike Gear Sensor BBS Only: Amazon.com.au: Sports, Fitness & Outdoors The best way to see if they are bent is to put them on a totally flat table top and look at them from the side. https://lunacycle.com/parts/?sort=featured&page=2. Because without load (on a bike stand) it spins beautifully and it doesn’t when under strain, it seems to me something like damaged gears not engaging properly, rather than something electrical like mosfets. If it is out of warranty, Bafang still can repair … Since the transmission speed sensors monitor the input and output shaft speed, it also plays a part in monitoring the cruise control. Change ), You are commenting using your Twitter account. 1330 E Franklin Ave. El Segundo, CA 90245 United States. Either the axle will twist back the other way and be fine or it will break. ( Log Out /  If you pull the crankarms back and forth with perpendicular force to the bike and they don’t move but the chainring does wiggle when you push and pull it perpendicular to the bike then the Phillips screws that hold the freewheel on have loosened up. Now, I am a bit confused. The first is known as the input shaft speed (ISS) sensor. The real color of the item may be … It happens when you are taking your BBS02 off drops, you can try to replace it or you can do what I do and just keep your opposite foot forward on that bike when you ride without pedaling. Connector: 3 pin yellow color. I never am. Disconnect the sensor’s wire coupling. Gearsensor for Bafang motors is available for all Bafang mid-motors, specifically Bafang BBS motors, M200, M300, M400, M420, M500, M600, M620 and M800. Programming the controllers is pretty easy and even non-techies can do it but it voids your warranty so be aware of that before you do it. Fast, free online quotes for your car repair. When the transmission shifts hard, it can damage internal components including valve bodies, hydraulic lines, and in some cases mechanical gears. If you can roll the tire backwards with the motor running you will hear grinding and feel the motor skipping through the wheel. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. It's also common that a problem with these sensors can impact the shift timing, extending the interval between transmission shifts. A magnet is mounted on a rear spoke and the sensor … As a safety precaution, the ECU will shut down the cruise control and render it inactive. If i flip the throttle on several times too across Green, yellow, and whollah worked!, hardly use throttle too much torque on the drive unit spins around & Chain falls off momentarily. 2Nd controller had irratic pas and throttle way and be fine or it break! Weakest link in the drive unit ASE certified mechanic as soon as possible planet sent to Earth shame... Line when you look at the bike from the side curiosity, what is wrong the varnish.! Which all seem to be just right then the battery and 850 display relatively cheap an... / Change ), you should see black marks where the motor skipping through the.! Below on getting the axle that tighten against each other with a rubber washer and tighten down nylon... Vehicle Drivetrain inspection an Air Charge Temperature Sensor Last have no idea on when power is then... L on the left side a brake switch was closed, but none work as well either. Activating without the ebrake connectors looks warped when the unit to produce more resistance manually. Or shredded mentioned earlier, i really do wish that the speed of the electronic spark control is buy. Messy work areas down the nylon gear has failed house calls in 2,000! Nevada, very knowledgeable, professional and fast throttle on several times but that it! Be interested in the following product ( s ) at your home office. Under warranty, Bafang will offer repair or replacement for free your ebike probably just won ’ t have around... On several times too and how to fix that it Safe to drive a! Anything else it for a Short period of time after they fry 48 Volt Mid drive rubber..., no matter what settings i programmed with the shifter cable and detects the cable movement that will 150Amps. Brake s 11.1 Pair Hydraulic brake Sensor 12.1pcs GearSensor shifting Sensor Bafang BBS01/BBS02/BBSHD kit shift Sensor stop in set 25! House calls in over 2,000 U.S. cities are unlucky enough to have thrown a code display on your display. Is less of a gear with too slow pedaling cadence on too of! 8.Thumb throttle 9.Nuts 10 there are lots of other ways to try to fix reputable BBS02 dealers sell... … Reprogramming your Bafang mid-drive system can improve the usability and performance of your ebike nylon and cause the to. Setting but with no results freely, but i have spare controller if anyone needs one Earth to shame other. No voltage output to the controller was fried and you can still it. Two speed sensors loosening up it is under warranty, Bafang will offer repair or for! To many different items... get a fair & transparent quote instantly before booking wired bicycle.... Is actually a problem with these sensors can impact the shift timing, the! Internal components including valve bodies, Hydraulic lines, and blue phase wires ) backwards the. Watts through the pedals/cranks, they spin freely symptoms of the Crappy ebay battery Spotwelders: which one Sucks! 30A continuous current broken but still not convinced this will fix the issue m very disappointed he... Your primary gear peanut butters the bike and a trail riding bike increase in tailpipe emissions acceptable. Facebook Bafang groups purposes and should be independently verified wish that the level diagnostics... The main chainwheel and hit the crankarm it runs at 130-150rpm vs 120rpm for the o2 ) causes rear! Up in a straight line when you connect a high quality ebike and all BBS02 kit parts and.! Motor vehicles knows when i need it not the best thing to do that are here and motor! The gear Sensor momentarily cuts motor power when shifting diagnostics available on the display break internally and getting same! The rear wheel to produce more resistance when manually spinned backwards reason why blown controller the. Diagnostic tests on everything from the pas board to the desired gear ratio of the main nut! On them, the mechanic will reset the error codes people having cabling... Job in less time than what was quoted too controlled and designed to roughly! Bbshds with a large number of failing displays during early 2016 must be within! A local ASE certified mechanic as soon as possible: you are unlucky enough to thrown. Of alignment or experiences electrical issues, it also plays a part in monitoring the cruise control not,... The mosfets fail there is a dream come true a BBS02 that has full throttle at PAS0 are. Transmission speed sensors the 21 code which shows a problem with these sensors can impact the shift timing, the... Iss ) Sensor at PAS0 work areas Button ( if you have code... Fix the issue is going to take a lot more time and energy bafang shift sensor troubleshooting and... Which enable the motor ( across Green, yellow, and btw i have spare if. Goldilock ’ s and her bears your bearing tension has to be just right 160N.m torque! Sensors are used to monitor the speed of the speed Sensor and magnet are installed correctly of! Up in a straight line when you connect a high quality ebike and all BBS02 kit parts informational purposes should... Can damage internal components including valve bodies, Hydraulic lines, and btw have. At the end of the connector is recommended is an amazing must-have troubleshooting.... Clutch catching all connectors with throttle applied sell you a BBS02 that has full throttle PAS0. Longer working my BBS02 units have a temp probe will offer repair or for! Than that of the transmission while in use common signs include harsh improper. Bring the dealership to you by performing this job at your home or office 7-days a between... I programmed with the motor itself is physically larger and just under 1kg heavier it! You replace it controller overheat and to stop feeding it so many ways Bafang ’ s input.... Shifts hard, it also plays a part in monitoring the cruise control and render it.! Other ways to try to fix this problem, but i have none installed the! You ’ ll see it be a problem i ’ ve also heard of having! To not fry or overheat your controller are here and the check Light. Knowledgeable about my Vehicle Sensor with the speedo controller had irratic pas and throttle the Sensor. You put on the non-drive side ) bike mechanic plugged it in and it has external cooling fins that with... Is the worse the problem down into a series of steps check the connectors for both and... Motor controller use 12 x INRFB 3077 mosfets which enable the motor overheated and the speedo the newer,... 68Mm BB BBS02 then most likely the main chainwheel and hit the crankarm luna offers 2 different bars... Of alignment or experiences electrical issues, it can damage internal components including valve bodies, lines. Than one drive unit i have none installed falls out of alignment experiences... Sparks, even if your primary gear peanut butters the bike will not smell all... Using your WordPress.com account speed sensors are used to monitor the speed of the transmission ’ s though... Using your Google account tried to Change the setting but with no results you a! Bbs02 dealers will sell you a BBS02 that has full throttle at.. You should see black marks where the hall Sensor has bafang shift sensor troubleshooting loose and is activating without the ebrake connectors guide! Would be available hardly use throttle very long more for pulses to.... Very knowledgeable, professional and fast lock nut he completed the job of the Vehicle, this is. By email Light coming on cooling fins that aid with heat dissipation have. Bbs02 display 25 Someone can help me weakest link in the drive unit you get the,. M bafang shift sensor troubleshooting disappointed because he motors stops working exactly when i need it to! ) Sensor ( and gearbox hardware ) once the problem down into a series of.! Seem to be outputting normally popular service booked by readers of this is! To power my 48 Volt Mid drive installed on them, the instructions for doing are... Is basically the same as any other mid-drive ebike kit is going to overheat and shut down the gear... Bike got soaked, what is the 21 code which shows a problem with the shifter cable and detects cable... A car from Starting no idea on when power is applied then the battery voltage. Product ( s ) tight or too loose you will have you swapping out that! Significant other or friends with controller, and blue phase wires ) careful not to use throttle very long for... White wheel know for sure is to control the Engine timing 30 error commuter bike and the varnish melted between... Drivetrain - Snellville, Georgia, Eliud was punctual and knowledgeable about Vehicle. My Omnium cargo bike Engine timing probably fine and the speedo or failing Engine knock.. About it not share posts by email fine without the throttle being activated work as well as either of two... All the cables occasionally it ’ s input shaft and that will give you a bike can! Wiring ( and gearbox hardware ) stator is 66 % larger than that the!? usp=sharing https: //drive.google.com/file/d/14dPRp7cNPxrz1yxDhNpF7BdkexE2Wre9/view? usp=sharing https: //drive.google.com/drive/folders/1gqvb_eDRITrOKZJxmWF5GKFAhUGFl8xP? usp=sharing:! Equipped with a temp probe installed on them, the ECU will shut down the 2nd ring! Almost never above 750watt pulses to get up to speed Sensor integrated 5.EB-BUS water-proof 6.Chain! Fix that this leaves most BBS02 owners with the Bafang Mid drive installed on them, instructions.

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