Hyena E-Bike System User manual

The information contained in this document is subject to change without notice.
If you nd any problems in the documentation, please report them to us in writing.
Original Instruction
Version 230314
Copyright © 2023 HYENA INC. All Right Reserved.
E-Bike System
Troubleshooting Guide

1. Introduction..................................................................... 1
1.1. Important Notices................................................... 1
1.2. Safety Instructions.................................................. 1
1.3. E-Bike Maintenance Precautions .......................... 2
2. Electrical Components................................................... 3
2.1. Electrical Component Overview............................. 3
3. E-Bike Maintenance........................................................ 4
3.1. General Information ............................................... 4
3.2. Cleaning ................................................................ 4
4. Frequently Asked Questions ......................................... 5
4.1. System Basic FAQS............................................... 5
4.2. Battery & Charging FAQS ...................................... 8
4.3. Remove or Change components FAQS................. 9
4.4. HST Connection FAQS ........................................ 10
4.5. Speed Limit FAQS.................................................11
4.6. Firmware Update FAQS....................................... 12
4.7. Miscellaneous FAQS............................................ 13
5. Error Code Overview Table.......................................... 14
6. Troubleshooting............................................................ 16
6.1. Code 16-17: Torque Sensor Signal Error ............. 16
6.2. Code 20-23: Front TPMS Error............................ 17
6.3. Code 24-27: IoT Function Error ........................... 18
6.4. Code 32-40: Motor Error ..................................... 19
6.5. Code 44-47: Rear TPMS Error ............................ 21
6.6. Code 48-49: Speed Sensor and Cadence Error .. 22
6.7. Code 50: Drivetrain Error (Chain) ........................ 23
6.8. Code 55: Brake Light Error ................................. 23
6.9. Code 56: Horn Error ............................................ 23
6.10. Code 59-62: Turn Signal Error ............................ 24
6.11. Code 63: Daytime Running Light Error ............... 24
6.12. Code 64-75: Battery Error ................................... 25
6.13. Code 80-94: Controller Error ............................... 27
6.14. Code 95-97: Throttle Error ................................. 30
6.15. Code 98-101: HMI Error ..................................... 31
6.16. Code 112: Front Light Error ................................ 31
6.17. Code 113: System Maintenance ........................ 32
6.18. Code 114: Bluetooth Error ................................... 32
6.19. Code 115: Brake Sensor Error ............................ 33
6.20. Code 116-117: Rear Light Error .......................... 33
7. Disposal ........................................................................ 34
TABLE OF CONTENTS

EN-1HYENA E-BIKE SYSTEMS
1. Introduction
When diagnosing the e-bike with Hyena Service Tool or Bike Tool System, the error
code shows on the application when a system error is detected. This guide instructs the
solution of di󰀨erent system defeats by error codes.
• This manual is intended primarily for the trained technician to install, disassemble, or
maintain the e-bike.
• Users who are not professionally trained for bicycle assembly should not attempt to
install, disassemble, or modify the components themselves.
• When maintaining the e-bike and its electronic components, always use this guide with
the product manuals or assembly manual, also read and observe the safety warnings
and directions contained in all the instructions.
• All Hyena e-system manuals and technical documents are accessible online at “www.
hyena-ebike.com”.
1.1. Important Notices
• Please carefully read all of the safety warnings and instructions throughout the manual.
Failure to follow these warnings and instructions could result in severe injury or death.
• Users not professionally trained in bicycle assembly should not attempt to install,
disassemble, or modify components.
► About Warnings Symbols
As you read this manual, you will see gray warning boxes like this:
⚠ WARNING
Text in a gray box with the safety alert symbol will warn you about a situation or behavior
that could cause severe injury or death.
⚠ CAUTION
Text in a gray box with the safety alert symbol and “CAUTION” heading will warn you
about a situation or behavior that could cause permanent product damage.
► About Images
The e-bike shown in this manual may di󰀨er visually from your Hyena equipped e-bike.
All information provided in this manual is still applicable to your e-bike.
1.2. Safety Instructions
Instructions Pertaining To A Risk Of Fire, Electric Shock, Or Injury To Persons
⚠ WARNING
When installing, disassembling, maintaining Hyena e-bike system
components, basic precautions should always be followed, including the following:
• Read all the instructions before any operation.
• Do NOT touch the cable terminal with bare hands.

EN-2HYENA E-BIKE SYSTEMS
• Do NOT turn on the e-bike system if any flexible power cord or output cable is
frayed, has worn insulation, or any other signs of damage.
• Always check the charger, cables, and power cord for any damage before charging
the battery.
• Only charge the battery using an original Hyena charger.
• Defective e-bike system parts may only be replaced with identical, original Hyena
parts.
• Do NOT modify the e-bike system or t any other equipment to increase the power
or maximum speed of your e-bike system.
• Any e-bike system parts are not intended to be operated at ambient temperatures
below -10°C (14°F) or above temperatures of 50°C (122°F).
• Do NOT immerse the e-bike or any e-bike component in water.
• Do NOT place the e-bike or any e-bike system component (like the battery) near
hot or ammable objects or materials.
• Do NOT charge the battery in places with high humidity or outdoors. Doing so may
result in electric shock.
⚠ WARNING
• When the assist system is switched on and an assist level is selected, the riding
support is activated as soon as you step onto the pedals or spin the crank. Even in
the workshop, you should be seated on the e-bike and engage at least one brake
before starting to pedal, or make sure the e-bike is properly secured on a stand
and the back wheel is suspended.
• With the e-bike system switched on, do NOT put one foot on a pedal and throw
another leg over the bicycle, as it could accelerate unexpectedly. Failure to follow
this warning may result in serious personal injury or even death.
1.3. E-Bike Maintenance Precautions
• Strictly follow all troubleshooting procedures in the order given. Done out of order, these
procedures can miss critical checks, you can possibly replace the incorrect assembly
or cause permanent product damage.
• Use the proper bicycle tools during the installation or removal process.
• Carefully installing and disassembling e-bike parts is necessary, do NOT strike the bike
frame or components with any tool, such as a hammer or wrenches.
• Use only genuine Hyena replacement parts. If you use anything other than genuine
Hyena replacement parts, you may compromise the safety, performance, or warranty of
your e-bike.

EN-3HYENA E-BIKE SYSTEMS
2. Electrical Components
2.1. Electrical Component Overview
• E-City Series
System Battery HMI Motor Sensor Charger
E-City BC-A320 LED Multi MRT-A250 ST-SQ-1 2A
E-City E BC-A320 LCD Compact EX MRT-A250 ST-SQ-1 2A
• E-Metro Series
System Battery HMI Motor Sensor Charger
E-Metro BS-A370 LED Multi MRT-A250 ST-SQ-1 2A/4A
E-Metro E BS-A370 LCD Compact EX MRT-A250 ST-SQ-1 2A/4A
E-Metro X BS-A500 LED Multi MRT-A250 ST-SQ-1 2A/4A
E-Metro XE BS-A500 LCD Compact EX MRT-A250 ST-SQ-1 2A/4A
• E-Urban Series
System Battery HMI Motor Sensor Charger
E-Urban BP-B250 LED Multi MRC-A250 ST-SQ-1 2A
E-Urban E BP-B250 LCD Compact EX MRC-A250 ST-SQ-1 2A
E-Urban T BP-B250 LED Chip MRC-A250 ST-SQ-1 2A
• E-Road Series
System Battery HMI Motor Sensor Charger
E-Road BP-B250 LED Chip MRC-E250 ST-SQ-2 2A
E-Road G BP-B250 LED Multi MRC-E250 ST-SQ-2 2A
• E-Trekking Series
System Battery HMI Motor Sensor Charger
E-Trekking BS-A370 LCD Compact EX MRC-A250 ST-SQ-1 2A
E-Trekking G BS-A370 LED Multi MRC-A250 ST-SQ-1 2A
E-Trekking X BS-A500 LCD Compact EX MRC-A250 ST-SQ-1 2A
E-Trekking XG BS-A500 LED Multi MRC-A250 ST-SQ-1 2A
E-Trekking Classic BP-A350 LCD Compact EX MRC-A250 ST-SQ-1 2A
E-Trekking Classic G BP-A350 LED Multi MRC-A250 ST-SQ-1 2A

EN-4HYENA E-BIKE SYSTEMS
3. E-Bike Maintenance
3.1. General Information
The e-bike should be checked for damage, missing or badly worn parts before each use.
If any part of the e-bike does not operate properly – discontinue use.
• Check the tightness of the screws/bolts before each use. Replace screws/bolts that are
damaged.
• Inspect the e-bike frequently. Make sure all parts are correctly assembled and adjusted.
• Immediately replace any damaged, missing, or badly worn parts.
• For the removable battery by turning the key, please remove the battery when
replacing a component or performing maintenance.
• The proper operation of the e-bike depends largely on its proper maintenance. Special
attention should be paid to:
- The correct torque of all screws and pins.
- Possible oil leaks from the brake system.
- Possible uid leaks from the battery.
- Possible smoke coming from the battery.
3.2. Cleaning
• For the removable battery by turning the key, please remove the battery when
cleaning the e-bike or the components of the e-bike system.
• Only clean the e-bike with a water-dampened soft cloth.
• Do NOT immerse the e-bike system or any individual e-bike component in water.
• Do NOT use any aggressive cleaning agents when cleaning.
• Do NOT use any sharp, angular, or metallic objects for cleaning.
• Never clean the components of the e-bike system with a hard water jet or a high-
pressure cleaner.
• After cleaning, wipe all surfaces and components to dry them.
• The system is designed to operate in rain and other adverse weather conditions.
Damage from pressure washing or additional heavy cleanings may void the Hyena
system warranty.

EN-5HYENA E-BIKE SYSTEMS
4. Frequently Asked Questions
When your e-bike has issues, you can nd answers to the following frequently asked
questions for basic solutions.
4.1. System Basic FAQS
Q1: Why can the system not be turned on?
Cause / Possibility Solution approach
Battery charge is low or
empty.
If the battery charge is low or if the battery is even empty,
please recharge the battery with a certied charger.
Battery is under sleep
(shutdown) mode.
The e-bike battery will automatically turn into sleep
(shutdown) mode if it has not been used for over 72 hours
for battery health and safety reasons. Please charge the
battery again to work normally.
The communication
between HMI, controller,
and battery has not
passed through.
- Check all external cable connections are correctly
connected.
- Replace the worn or damaged cable.
Cable connector pin is
damaged.
- Check if any corrosion/bend pin is visible on the connector.
- If necessary, replace a cable.
Q2: Why is there an abnormal sound at riding?
Cause / Possibility Solution approach
The drivetrain or the
motor is malfunctioning.
- Check the bicycle drivetrain and wheel to see if the noise
comes from them.
- Turn o󰀨 the power for manual pedaling.
- The maximum noise of the motor at spinning shall be
under 60dB. If the motor produces any higher noise or
irregular sound (clicking, vibration, etc.), replace the motor.
The motor is under
heavy load.
Are you riding on long slopes in the heat or putting an
overload of weight on the e-bike for a long time? The motor
can be louder under high load conditions.
Q3: Why do the lights do not illuminate?
Cause / Possibility Solution approach
The charge level of the
battery is too low.
When the battery charge is below 4%, the remaining amount
is reserved for powering the lights for up to two hours. At 0%
charge, the lights will not illuminate anymore.
The connectors of the
electric cables are not
connected correctly.
Check if all the connectors of the electric cables are
correctly connected.
The lights are
malfunctioning.
If all the connectors of the electric cables are correctly
connected, please replace the lights.

EN-6HYENA E-BIKE SYSTEMS
Q4: Why is the system on but without assistance power?
Cause / Possibility Solution approach
Charge level is low or
empty.
At 4% battery charge and below, the riding support will stop.
The remaining amount is reserved for powering the lights (if
equipped and powered by the assist system) for up to two
hours.
Riding support is not
turned on. You will only feel the riding support from level 1 to level 3.
You are not pedaling.
The e-bike only provides riding support power when you
keep pedaling. Riding support will be shut down immediately
when you stop pedaling.
System overheats.
- Are you riding on long slopes in the heat or putting an
overload weight on the e-bike for a long time? The e-bike
assist system may overheat.
- Please Turn OFF system, then take the e-bike to a well-
ventilated area and let it cool down for at least 10 minutes.
Speed limitation.
The e-bike drive output only supports a maximum speed
as demanded by local regulations; as soon as you have
reached this speed limit, the e-bike system suspends the
riding support, then automatically reactivates when your
speed is below the speed limit.
Cables are not connected
correctly.
If the system is on but without assistance power, please
check if the below two connectors connect properly:
- Motor: the motor connector is normally located at the
chainstay or seatstay. Check if the connector is plugged in
tight (refer to EN-20).
- Sensor: the sensor connector is normally located under the
bottom bracket. Check if the connector is plugged in tight
(refer to EN-16).
Cable connector pin
damaged.
- Check if any corrosion/bend pin is visible on the motor/
sensor connector.
- If necessary, replace a cable.
Torque sensor was
installed in the wrong
direction.
Try to pedal backward and see if there is any assistance
power. If there is assistance power, please reinstall the
torque sensor in the correct direction.
The torque sensor is
malfunctioning.
- Try the walk assist mode and see if the motor will spin. If
so, very likely the torque sensor signal cannot be detected.
- Ensure the connectors between the torque sensor and
controller are correctly connected and run the advanced
diagnosis tool on Hyena Service Tool.
The motor is
malfunctioning.
Try activate the walk assist function and see if the motor will
spin. If not, very likely the motor or controller needs to be
xed. Please take turns crosschecking both parts.

EN-7HYENA E-BIKE SYSTEMS
Q5: Why the system suddenly stops providing assistance?
Cause / Possibility Solution approach
Charge level is low or
empty.
At 4% battery charge and below, the riding support will
stop. The remaining amount is reserved for powering the
lights (if equipped and powered by the assist system) for up
to two hours.
System overheats.
- Are you riding on long slopes in the heat or putting an
overload weight on the e-bike for a long time? The e-bike
assist system may overheat.
- Please Turn OFF system, then take the e-bike to a well-
ventilated area and let it cool down for at least 10 minutes.
Speed limitation.
The e-bike drive output only supports a maximum speed
as demanded by local regulations; as soon as you have
reached this speed limit, the e-bike system suspends the
riding support, then automatically reactivates when your
speed is below the speed limit.
Cables are not connected
correctly.
If the system is on but without assistance power, please
check if the below two connectors connect properly:
- Motor: the motor connector is normally located at the
chainstay or seatstay. Check if the connector is plugged
tight (refer to EN-20).
- Sensor: the sensor connector is normally located under
the bottom bracket. Check if the connector is plugged tight
(refer to EN-16).
The torque sensor is
malfunctioning.
- Try the walk assist mode and see if the motor will spin. If
so, very likely the torque sensor signal cannot be detected.
- Ensure the connectors between the torque sensor and
controller are correctly connected and run the advanced
diagnosis tool on Hyena Service Tool.
The motor is
malfunctioning.
Try activate the walk assist function and see if the motor will
spin. If not, very likely the motor or controller needs to be
xed. Please take turns crosschecking both parts.