FXTUL M4-HD Advanced Diagnostic Tool for Harley-Davidson Motorcycles

Supported Series

• Softail
• Sportster
• Touring
• Pan America
• Pan America Special
• Sportster S
• Dyna
• Street
• VRSC

• [ECM] (Engine Control Module)
• [ABS] (Anti-lock Braking System)
• [SPEEDO] (Speedometer Control Module)
• [IPC] (Instrument Cluster)
• [BCM] (On-Board Control Module)
• [LHG] (Left Handle Grip)
• [RHG] (Right Handle Grip)
• [TSM] (Turn Signal Module)
• [SCM] (Security Control Module)
• [TACHO] (Tachometer Control Module)
• [RADIO] (Radio Module)
• [EHCU] Electro Hydraulic Control Module

1. VER (Module Information): Module Information Query
   • Function: Obtain detailed information of each module of the motorcycle, including hardware version, software version, serial number, etc. This helps maintenance personnel understand the basic situation of the module and provides a basis for subsequent diagnosis and maintenance.
2. RTC (Read Fault Code): Read Fault Code
   • Function: Quickly read the fault codes stored in the motorcycle's electronic control system. Fault codes are specific codes generated by the control module when a vehicle malfunctions. By reading the fault codes, maintenance personnel can initially determine the general scope and possible causes of the fault.
3. CTC (Clear Fault Code): Clear Fault Code
   • Function: After the fault is repaired, use this function to clear the fault code record. This ensures that the fault indicator light goes off and the system can resume normal monitoring and recording of new faults.
4. LDS (Live Data Stream): Live Data Stream
   • Function: Monitor the data of various sensors and actuators of the motorcycle in real time, such as engine speed, vehicle speed, water temperature, oil temperature, intake pressure, throttle opening, etc. Maintenance personnel can understand the running state of the vehicle under different working conditions by observing the real-time data, which is helpful for finding potential problems or verifying the maintenance effect.

1. ACT (Fuel Pump): Fuel Pump Control
   • Function: Activate or control the operation of the fuel pump. For example, in some diagnostic tests, it is necessary to control the operation of the fuel pump alone to check the pressure, flow and other parameters of the fuel system, or test whether the fuel pump works normally after maintenance.
2. ACT (Idle Air Control Valve): Idle Air Control Valve Control
   • Function: Used to adjust the intake air volume when the engine is idling, thereby controlling the idling speed. Through this function, the action test of the idle air control valve can be carried out to check whether it can work normally and adjust the idling speed.
3. ACT (Front Coil): Front Ignition Coil Control
   • Function: Control the operation of the ignition coil of the front cylinder of the motorcycle engine, which can be used for fault diagnosis and testing of the ignition system, such as checking whether the ignition coil can generate high - voltage sparks normally.
4. ACT (Rear Coil): Rear Ignition Coil Control
   • Function: Similar to the front ignition coil control, it is used to control the operation of the ignition coil of the rear cylinder of the engine and conduct related tests and fault troubleshooting of the ignition system.
5. ACT (Air Cleaner Intake Valve): Air Cleaner Intake Valve Control
   • Function: Control the opening and closing of the air cleaner intake valve, which may be used to check the working state of the intake system or conduct related tests in some special diagnostic modes.
6. ACT (Servomotor Exhaust Flap): Exhaust Valve Servo Motor Control
   • Function: Control the exhaust valve servo motor in the exhaust system, which may be used to adjust the exhaust back pressure, optimize engine performance or meet specific emission requirements. Through this function, the action and control logic of the servo motor can be tested to see if they are normal.
7. ACT (Throttle Actuator Sweep): Throttle Actuator Sweep
   • Function: Make the throttle actuator perform a full - stroke action scan to check whether the opening change of the throttle is smooth and accurate, and whether the feedback of the throttle position sensor is normal, which is helpful for diagnosing the faults of the throttle control system.
8. ACT (Cooling Pump/Cooling Relay): Cooling Pump/Cooling Relay Control
   • Function: Control the operation of the cooling pump or cooling relay in the cooling system, which can be used to check whether the circulation of the cooling system is normal and test the operation of the cooling pump after maintenance.
9. ACT (Fan A): Fan A Control
   • Function: Control the operation of cooling fan A. When the engine temperature reaches a certain threshold, fan A should start to help dissipate heat. Through this function, the start and stop of fan A can be manually controlled to check the working state and control circuit of the fan.
10. ACT (Fan B): Fan B Control

• Function: Similar to the control of fan A, it is used to control the operation of cooling fan B. Some motorcycles may be equipped with multiple cooling fans to meet different cooling requirements.

11. ACT (Chassis Fan): Chassis Fan Control

• Function: Control the operation of the chassis fan. The chassis fan may be used to cool other parts of the motorcycle, such as the gearbox and clutch. Through this function, the working condition of the chassis fan can be checked to ensure its normal heat dissipation.

12. ACT (Neutral Rev Limit Override): Neutral Rev Limit Override

• Function: In some special diagnostic or test situations, release the engine speed limit when in neutral gear, so as to conduct related performance tests or fault troubleshooting.

13. SER (AFV Reset): Adaptive Fuel Value Reset

• Function: Reset the adaptive fuel value of the engine, so that the engine control system can relearn and adjust the fuel injection volume to adapt to different working conditions and environmental conditions.

14. SER (Idle Speed Adjustment): Idle Speed Adjustment

• Function: Adjust the idling speed of the engine. According to the actual situation and maintenance needs of the vehicle, set the idling speed to an appropriate value to ensure the stable operation of the engine.

15. SER (Module Replacement): Module Replacement

• Function: After replacing the engine control module or other related modules, perform some necessary initialization settings or programming operations to make the new module communicate and cooperate normally with other systems of the vehicle.

16. SER (Automatic Compression Release): Automatic Compression Release

• Function: Control the automatic compression release function of the engine. This function usually works when starting. By releasing part of the compression pressure of the cylinder, the starting resistance is reduced, making the engine easier to start.

17. SER (Side Stand Switch): Side Stand Switch

• Function: May involve the detection or setting of the side stand switch. The side stand switch is used to detect the state of the side stand. When the side stand is put down, some safety mechanisms may be triggered, such as limiting the engine speed or preventing the vehicle from starting. Through this function, the working state of the side stand switch can be checked to see if it is normal, or relevant settings can be adjusted in some cases.

18. SER (EITMS): Engine Idle Temperature Management System

• Function: Used for related operations on the engine idle temperature management system. This system may adjust the idling speed of the engine under specific conditions (such as when the engine temperature is too high) to reduce the engine temperature. Through this function, operations such as diagnosis, setting or resetting of EITMS can be carried out.

19. SER (Chassis Fan Cooler): Chassis Fan Cooler

• Function: Settings or operations related to the cooling function of the chassis fan. For example, adjust the working mode, speed or temperature threshold of the chassis fan cooler to ensure the effective cooling of the chassis components.

20. SER (Oil Cooler Fan): Oil Cooler Fan

• Function: Control or setting function for the oil cooler fan. It can be used to check the working state of the oil cooler fan, adjust parameters such as the starting temperature or speed of the fan to ensure the cooling effect of the oil.

21. SER (Cruise Control): Cruise Control

• Function: Operations related to the cruise control system of the motorcycle. It may include setting the cruise speed, enabling or disabling the cruise control function, checking the working state of the cruise control system, etc., to facilitate maintaining a stable vehicle speed during long - distance riding.

1. ACT (ABS Pump Motor): ABS Pump Motor Control
   • Function: Activate or control the operation of the pump motor in the ABS system. The pump motor is used to generate hydraulic pressure during braking to achieve the anti - lock braking function. Through this function, the running condition of the pump motor can be tested to check whether it can work normally.
2. ACT (Front Apply Solenoid): Front Brake Apply Solenoid Control
   • Function: Control the apply solenoid of the front brake in the ABS system. During the braking process, the solenoid adjusts the braking pressure according to the control signal to achieve anti - lock braking. Through this function, the action and control logic of the solenoid can be checked to see if they are normal.
3. ACT (Front Release Solenoid): Front Brake Release Solenoid Control
   • Function: Corresponding to the front brake apply solenoid control, it is used to control the release solenoid of the front brake. When it is necessary to release the braking pressure, the solenoid opens to reduce the braking pressure.
4. ACT (Rear Apply Solenoid): Rear Brake Apply Solenoid Control
   • Function: Control the apply solenoid of the rear brake in the ABS system. Its working principle is similar to that of the front