Harley Davidson Factory Security System Manual: An Overview (02/03/2026)
This manual details the Harley-Davidson Factory Security System, encompassing components like the HFSM, antenna, and pager receiver (FCC ID: MKFAR160).
System Components & Functionality
The Harley-Davidson Smart Security System (H-DSSS) fundamentally relies on a Hands-Free Security Module (HFSM) and a corresponding Hands-Free Antenna, both strategically mounted directly onto the motorcycle itself. This integrated system diligently monitors for any unauthorized activity. Furthermore, the optional Pager Receiver, identified by FCC ID MKFAR160, provides remote alerts, functioning seamlessly with the Smart Siren or in a silent paging mode for discreet security.
Understanding the Harley-Davidson Smart Security System (H-DSSS)
The H-DSSS utilizes a Hands-Free Security Module (HFSM) and antenna for comprehensive motorcycle protection, offering features like automatic arming and PIN disarming.
Hands-Free Security Module (HFSM)
The Hands-Free Security Module (HFSM) is a core component of the Harley-Davidson Smart Security System (H-DSSS), diligently monitoring for unauthorized activity. It’s designed for seamless operation, automatically arming within five seconds of inactivity. This module works in conjunction with the hands-free antenna, providing a robust security perimeter. Successful disarming requires the owner’s unique five-digit Personal Identification Number (PIN), ensuring only authorized access is granted, protecting against theft and tampering.
Hands-Free Antenna
The Hands-Free Antenna is crucial for the Harley-Davidson Smart Security System (H-DSSS), working alongside the Hands-Free Security Module (HFSM). It facilitates the system’s ability to detect movement and potential tampering. Properly mounted on the motorcycle, the antenna enables automatic arming and disarming features. Its performance is integral to the overall security, ensuring reliable operation with the Smart Siren or silent paging functionality, safeguarding your investment against unauthorized access.
System Activation and Arming Procedures
Activation involves a five-digit PIN code for disarming, while automatic arming occurs within five seconds of no detected motion, signaled by flashing turn signals.
Automatic Arming Sequence
The Harley-Davidson Smart Security System (H-DSSS) features an automatic arming sequence, enhancing security without manual intervention. If no motion is detected for five seconds, the system automatically arms itself. This process is visually confirmed by the motorcycle’s turn signals flashing twice, indicating successful activation.
Disarming the Security System with PIN Code
To disarm the Harley-Davidson Smart Security System, utilize your pre-set, five-digit Personal Identification Number (PIN) code. Carefully follow the instructions detailed in the owner’s manual for the correct PIN entry procedure. Successful disarming ensures motorcycle operation and prevents unwanted alarm activation.
Harley-Davidson Security System Pager Receiver
The Harley-Davidson Security System Pager Receiver, FCC ID MKFAR160, operates with the Smart Siren or silently, providing crucial security alerts to the owner.
Pager Receiver Details (FCC ID: MKFAR160)
The Harley-Davidson Security System Pager Receiver, identified by FCC ID MKFAR160 and manufactured by Kenwo Industries Limited, is a vital component. This receiver provides remote notification of security system events. It’s designed for compatibility with the original Smart Siren, offering audible alerts, or can function as a silent paging system for discreet monitoring. Detailed user manual information, spanning ten pages and one MB in size, is readily available for comprehensive understanding and operation of this crucial security feature.
Operating with Smart Siren
When utilized with the original Smart Siren, the Harley-Davidson Security System provides clear audible alerts upon triggering. The pager receiver instantly notifies the owner of any security breaches, enhancing responsiveness. This setup delivers a robust security solution, combining remote notification with a localized alarm. Proper configuration ensures optimal performance, allowing riders to quickly address potential threats and safeguard their motorcycle investment effectively;
Silent Paging System Functionality
The Harley-Davidson Security System Pager operates effectively as a silent paging system, offering discreet alerts without audible alarms. This functionality is ideal for situations where attracting attention is undesirable. The pager receiver promptly notifies the owner of any triggered events, providing immediate awareness of potential security compromises. This mode prioritizes covert notification and rider discretion.

Troubleshooting Common Security System Issues
Addressing issues like the system failing to arm or experiencing false alarms is crucial; consult the owner’s manual and service resources for guidance.
Security System Not Arming
If the security system fails to arm, first verify the maxi-fuse is correctly installed and functioning. Ensure no recent activity has interrupted the automatic arming sequence, which initiates within five seconds of inactivity. Refer to the owner’s manual for PIN code disarming procedures, as an incorrect attempt may prevent arming. Check for any error messages or diagnostic codes, utilizing the electrical diagnostic manual for interpretation and resolution.
False Alarm Triggers
False alarms can occur due to sensitivity settings or external factors. Ensure the motorcycle is parked on a level surface and shielded from strong vibrations. Verify no aftermarket accessories are interfering with the system’s sensors. A security card acceptance message (product 91664-03) doesn’t indicate an alarm; it confirms system functionality. Consult the service manual for adjusting sensor sensitivity to minimize false triggers.

Turn Signal Module (TSM) & Turn Signal Security Module (TSSM)
The TSM controls turn signals, while the TSSM adds security functions. Both modules are vital for proper operation and system integrity on your motorcycle.
TSM Functionality
The Turn Signal Module (TSM) is fundamentally responsible for controlling all turn signal operations on the motorcycle. It manages the flashing sequence, ensuring visibility to other drivers. This module receives input from the turn signal switch and activates the appropriate lights. Proper TSM function is crucial for safe operation, and any malfunction can compromise signaling capabilities, potentially leading to accidents. Diagnostics within the service manual detail testing procedures.
TSSM Security Features
The Turn Signal Security Module (TSSM) builds upon TSM functionality by integrating security features into the turn signal system. It works in conjunction with the Hands-Free Security Module (HFSM) to provide an added layer of protection against theft. The TSSM can trigger the security system if unauthorized tampering is detected, enhancing overall motorcycle security. Detailed diagnostics are available in the electrical manual.
Security System and Maxi-Fuse Interaction
The Harley-Davidson security system interacts with the maxi-fuse; removal disables the system, a procedure detailed in the owner’s manual for service access.
Locating and Removing the Maxi-Fuse
To disable the security system, locate the maxi-fuse, a critical step outlined in the owner’s manual. Access requires opening the motorcycle seat; Carefully remove the maxi-fuse; this action temporarily deactivates the system. Remember to consult the service manual for precise location details specific to your Harley-Davidson model. Reinstallation reactivates security, ensuring proper functionality after maintenance or transport.
Security System Disablement Procedure
Complete security system disablement involves removing the maxi-fuse, as detailed in service and electrical diagnostic manuals. Following this, adhere strictly to the owner’s manual instructions for disarming. This procedure is crucial during maintenance or transport. Remember, disabling the system leaves the motorcycle vulnerable; re-enable promptly after completing necessary tasks for continued protection.

Integrating Security System with Motorcycle Operation
The H-DSSS impacts the starting procedure and continuously monitors during operation, ensuring security isn’t compromised while enjoying the ride and motorcycle functionality.
Impact on Starting Procedure
The Harley-Davidson Smart Security System (H-DSSS) requires disarming before starting. Utilize your five-digit Personal Identification Number (PIN) following the Owner’s Manual instructions. Failure to disarm will prevent engine ignition. Remember to consult the service and electrical diagnostic manuals for detailed guidance. Removing the maxi-fuse, as outlined in the manual, is also part of the process.
System Monitoring During Ride
While riding, the Harley-Davidson Smart Security System remains active, continuously monitoring for unauthorized activity. The system’s functionality doesn’t impede normal motorcycle operation. However, be aware of potential error messages and consult the diagnostic section of the manual. Regular system checks, as detailed in the service manual, are recommended for optimal performance and security.

Security Card Acceptance & Product Codes
The system confirms acceptance via a message, such as “security card accepted, product 91664-03.” Understanding these codes aids in troubleshooting and verification.
Understanding Security Card Messages
Security card messages provide crucial system status updates. A successful “security card accepted” message, often accompanied by a product code like “91664-03”, confirms proper module recognition. These messages indicate the Hands-Free Security Module (HFSM) is communicating effectively. Conversely, error messages necessitate consulting the service manual for diagnostic procedures. Deciphering these signals is vital for maintaining optimal security functionality and promptly addressing potential issues, ensuring your Harley-Davidson remains protected;
Decoding Product Codes (e.g., 91664-03)
Product codes, such as “91664-03”, are essential identifiers for Harley-Davidson security system components. These codes link directly to specific module versions and compatibility information. Referencing the parts catalog or dealer network with this code ensures correct replacement parts are utilized during service or upgrades. Accurate decoding guarantees system functionality and avoids compatibility conflicts, maintaining the integrity of your motorcycle’s security features and overall performance.

Installation Requirements & Compatibility
Prior to installation, ensure your Harley-Davidson is equipped for the factory security system; Compatibility with aftermarket accessories should be verified beforehand.
Pre-Installation Vehicle Requirements
Before initiating the installation process, confirm your motorcycle meets specific prerequisites. The vehicle must be equipped with a Harley-Davidson Factory Security System as a foundational element. Thoroughly review the owner’s manual for compatibility details. Ensure all electrical connections are clean and functioning correctly. Verify the maxi-fuse is accessible for potential security system disablement, as outlined in service documentation.
Compatibility with Aftermarket Accessories
Integrating aftermarket accessories requires careful consideration to avoid conflicts with the Harley-Davidson security system. Modifications to the electrical system, particularly those affecting the turn signals or ignition, may impact functionality. Consult with a qualified Harley-Davidson technician before installing any accessory. Prioritize accessories designed specifically for compatibility with the H-DSSS to maintain optimal security performance.

Service Manual & Electrical Diagnostic Manual References
Referencing the service and electrical diagnostic manuals is crucial for detailed troubleshooting, repair procedures, and understanding system schematics for the H-DSSS.
Importance of Service Manual
The Harley-Davidson service manual is an indispensable resource for comprehensive system understanding and repair. It provides detailed diagrams, component locations, and step-by-step instructions for diagnostics and maintenance of the security system. Crucially, it outlines procedures for disarming the system, removing the maxi-fuse, and accessing components. Without it, proper troubleshooting and repair become significantly more challenging, potentially leading to incorrect diagnoses or damage to the system.
Utilizing Electrical Diagnostic Manual
The electrical diagnostic manual complements the service manual, offering specific procedures for pinpointing electrical faults within the security system. It details testing procedures, voltage specifications, and wiring diagrams essential for accurate troubleshooting. This manual aids in interpreting error messages and utilizing diagnostic tools effectively, ensuring correct identification of issues like false alarms or system failures. Referencing both manuals is vital for complete system analysis.

System Updates & Firmware
Regularly check for available system updates to enhance security and functionality. Firmware updates are crucial for optimal performance and addressing potential vulnerabilities.
Checking for Available Updates
To ascertain if updates are available for your Harley-Davidson Smart Security System (H-DSSS), consult the official Harley-Davidson website or authorized dealership service departments. They will provide the latest information regarding firmware revisions and update procedures. Regularly checking ensures your system benefits from the newest security enhancements and bug fixes, maintaining optimal operational effectiveness and safeguarding against emerging threats. Ignoring updates could leave your motorcycle vulnerable.
Firmware Update Procedures
Firmware updates typically require a connection to a Harley-Davidson diagnostic tool and a compatible computer. Download the update file from the official source, following all provided instructions meticulously. Ensure a stable power supply during the process to prevent interruption. The system will guide you through the steps; avoid interrupting until completion. Incorrect procedures may render the security system inoperable, necessitating professional assistance.
Security System Limitations
Despite robust features, the system isn’t impervious; vulnerabilities exist. Best practices, like secure parking and awareness, enhance security, but cannot guarantee complete protection.
Potential Vulnerabilities
While the H-DSSS offers significant protection, potential vulnerabilities exist. Determined thieves might employ signal jamming techniques or attempt to bypass the immobilizer functionality. The system’s reliance on electronic components introduces susceptibility to sophisticated hacking attempts. Physical compromise of the Hands-Free Security Module (HFSM) or antenna also presents a risk. Regular system updates and diligent owner practices are crucial to mitigate these potential weaknesses and maintain optimal security levels.
Best Practices for Enhanced Security
To maximize security, always utilize a unique, difficult-to-guess PIN code and keep it confidential. Regularly check for and install available system firmware updates. Park in well-lit, high-traffic areas whenever possible. Consider utilizing a secondary locking device, like a disc lock, for added protection. Be vigilant and report any suspicious activity surrounding your motorcycle to local authorities promptly.
Advanced Security Features
The H-DSSS incorporates an immobilizer function, preventing starting without proper authorization, and offers potential remote monitoring capabilities for increased peace of mind.
Immobilizer Functionality
The Harley-Davidson Smart Security System (H-DSSS) features a robust immobilizer function, a critical layer of protection against theft. This system prevents the motorcycle’s engine from starting unless the correct, authorized disarming sequence – typically involving the PIN code – is successfully completed. Without proper authorization, the fuel pump and ignition systems are electronically disabled, rendering the motorcycle inoperable and significantly deterring unauthorized use. This advanced feature adds substantial security.
Remote Monitoring Capabilities
While the core H-DSSS focuses on localized security, integration with aftermarket remote monitoring solutions is possible. The Smart Siren, when paired with compatible systems, can transmit alarm notifications to a smartphone or monitoring service. The pager receiver (MKFAR160) offers basic remote alerts, but expanded capabilities require additional hardware and subscription services, providing owners with increased awareness of their motorcycle’s security status.

System Diagnostics & Error Codes
The system utilizes error messages to aid troubleshooting; referencing the electrical diagnostic manual is crucial for interpreting these codes and performing effective repairs.
Interpreting Error Messages
Decoding error messages requires the service and electrical diagnostic manuals; these provide specific meanings for each code displayed by the Harley-Davidson Smart Security System (H-DSSS). Understanding these codes is vital for pinpointing the source of malfunctions, ranging from sensor failures to communication issues between modules. Proper interpretation guides technicians toward efficient repair strategies, minimizing downtime and ensuring optimal system functionality. Always consult official documentation for accurate diagnostics.
Diagnostic Tools & Procedures
Effective diagnosis relies on utilizing the Harley-Davidson electrical diagnostic manual alongside specialized tools. These procedures involve checking for proper voltage, continuity, and resistance within the system’s wiring harness and components. Scanning for error codes with a compatible diagnostic tool is crucial, followed by a systematic evaluation of the Hands-Free Security Module (HFSM) and antenna. Referencing the service manual ensures correct testing protocols are followed.

Owners Manual Guidance
The owner’s manual provides essential instructions for disarming the system, understanding its behavior, and removing the maxi-fuse for maintenance procedures.
Following Instructions for Disarming
To disarm the Harley-Davidson Smart Security System, carefully adhere to the owner’s manual guidance. Utilize your unique five-digit Personal Identification Number (PIN) code, entering it precisely as instructed. Remember to reference the service manual for detailed steps. Proper disarming ensures safe operation and prevents accidental activation, safeguarding against false alarms and potential immobilization issues.
Understanding System Behavior
The Harley-Davidson Smart Security System (H-DSSS) arms automatically after five seconds of inactivity, indicated by a double flash of the turn signals. Familiarize yourself with this sequence. The system interacts with the motorcycle’s starting procedure and continuously monitors for activity. Understanding these behaviors is crucial for effective operation and troubleshooting potential issues, ensuring optimal security.