500-1300 e-ASK PKE System (Passive Keyless Entry)

TriMark's third generation of e-ASK Systems consists of a selection of compatible components that allow for complete keyless entry for on- or off-highway vehicle applications. It features Passive Keyless Entry (PKE) and offers optional vehicle mobilization/immobilization and keyless push button start. These are the same ‘state of the art’ electronics that are featured on higher end automobiles and is now available for integration on your vehicles. 



This new generation of Remote Keyless Entry not only brings expanded vehicle convenience and security to the end consumer, it also adds value to the Original Equipment Manufacturer (OEM) by incorporating the Passive Keyless Entry (PKE), immobilization and keyless start into a single package.

How does passive keyless entry/start work? Passive entry: No button presses are required. Simply placing a hand near the door handle or within range (30 mm) of the external capacitive sensing ‘puck’ will wake up the PKE controller. The controller sends a low-frequency (LF) signal, all FOBs within range respond with their serial numbers using a radio frequency (RF) signal. The controller compares the serial numbers against a stored list of authorized FOBs. The LF messaging also uses a random numbering scheme to prevent intercepting attacks. If an authorized FOB has responded, the door unlocks in less than one second.

RF entry: The FOBs also have typical lock/unlock buttons that can be used from up to 50 meters using RF signals with encrypted messaging. The FOB must decrypt the message and send back an appropriate response before the PKE controller will unlock the door.

The engine can be started by simply pressing the start button. The system uses the LF/RF messaging a second time to ensure an authorized FOB is within range inside the vehicle using the same protocol. The controller then communicates to another J1939 device that it’s appropriate to mobilize the vehicle also using encrypted messages. The combination of LF challenge and RF response delivers low power consumption and long battery life.

This system allows for single standardized hardware architecture to be configured for many different user interfaces and many different applications. The resulting hardware includes a common controller and other peripheral modules. This hardware is already tested and validated and can be utilized to other applications with a high level of confidence.

Furthermore, common software development can support future applications adoption, controlling the I/O control module and communications (J1939 250k, J1939 500k or RV-C).

Designed For

TriMark's comprehensive matched component selection allows for complete keyless entry, security, and ignition control for varied levels of sophistication of on- or off-highway vehicles or other equipment. Standard electronic controls are available for immediate integration, also software adaptations can be provided for specific OEM and customer requirements.


  • Keyless-entry security and convenience for access door systems through a 'state of the art' electronic interface for the ultimate in end user convenience, functionality and security
  • Passive Keyless Entry (PKE) provides for 'hands free' unlocking
    • When the user's hand enters the field under the handle portion, the systems wakes up
    • This activity energizes the exterior antenna. FOBs in range will respond with their serial numbers combined in a data packet sent via 433 MHz using a radio signal frequency (RF)
    • If the FOBs respond with serial numbers that match an authorized list, the control module will pulse the unlock motor for 1/2 second to unlock the handle

  • Easy and intuitive to operate
  • Rugged and durable construction - compliant to on-road, off-road, and industrial environmental requirements
  • Independent control of multiple door zones
  • CAN J1939 (250k/500k) or RV-C communications
  • Locking/unlocking confirmation
  • Lighting and auxiliary output control
  • Emphasizes a new modular approach for multiple user interfaces and enables adoption of new technologies such as wireless communications protocols that are more common in automotive and smart phone usage, namely remote passive entry and Bluetooth/WiFi protocols (coming soon)



  • Stylish 4-button PKE FOB - operates at 125 kHZ (PKE) and 433 kHZ(RF) transmission (compliant to FCC-Part 15 and EU RF requirements)
    • 4 button FOB can be used for other functions such as illumination of work lights as you approach the machine for safe entry or service of the machine
    • The key FOB can also be used as a normal RF keyless entry so unlocking via button presses is possible
    • RF range is approximately 100 meters

  • High security with random numbering scheme between the FOB(s) and controller to prevent attacks/hacking
  • Customized graphics possible (buttons and logos)
  • Can sync up to 4 FOB transmitters to vehicle
  • Passive Start - FOB needs to be located inside the vehicle to allow Passive Start
  • Immobilization – if the correct FOB is not within range of the internal antenna, the vehicle cannot be started


  • Waterproof enclosure with high quality Deutsch connectors - (2) 12 pin connectors or unsealed enclosure with AMP Duac connectors
  • Enables distributed functionality, such as multiple door control and ignition immobilization, via vehicle multiplex communication


  • Standard kit make up includes: Two pre-paired RF remote FOB transmitters, IO module, external antenna and manual
  • Multiplex or discrete communications
  • Can add TriMark's 540-0100 e-PAD Keypad for true keyless operation
  • Customized wire harnesses
  • Optional kits can include: any wiring harnesses for all connection points of system, extra relays, switches, door contacts, actuators, mounting hardware, mounting brackets, door latches, and door handles


  • RFID Antenna (125 kHZ) - 1 external for cab entry (PKE) and 1-2 for interior;  immobilization and push to start
  • Potted construction ensures environmental protection and durability performance – can be used in exterior or interior locations 
  • Custom mounting brackets available

 Remote Start

  • Optional Remote Start available with select engines. Custom software required to communicate with Engine Control Unit (ECU)

 Use With

  • TriMark 510-0300 PKE Module
  • TriMark 530-0400 PKE FOB
  • TriMark 590-1200 PKE Antenna
  • TriMark 020-0870 Power Locking Pull Handle with Capacitive Sensor for PKE
  • TriMark puck with Capacitive Sensor for PKE
  • TriMark 540-0200 Lighted Grab Handle with Keypad (e-GRAB)


  • Standard 12 VDC power
  • I/O module is easily installed with (2) 1/4" or M6 screws (not included) and can be mounted in a concealed location

U.S. Patent No. 8,350,669

U.S. Design Patent No. D803,792




Typical Uses

Typical application use illustrations are organized by Industry/System and are intended to give the user some ideas for specifying a complete system using TriMark products.

Not all Industry/System applications have typical use illustrations. If a typical use illustration is not available for your specific application, please submit a technical product information request and a technical representative can assist you in selecting a product(s) solution for your specific application.

500-1300 e-ASK PKE System (Passive Keyless Entry)

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