CANBUS Speed Interface

Please enter the vehicle details above and we will email you the connection points where available when the order is processed.

Many of the new vehicles around today utilise CANBUS (also known as CAN; CAN-BUS; CAN BUS; C-BUS) to transmit the specific data and conditions between devices. This has rendered traditional signal carrying wires obsolete. Navigation units or other devices (telematics, trip recorders, taxi meters, data logging, tracking) need a speed signal to operate, they use this to determine speed and distance to ensure accuracy. Now also covers CANBUS enables trucks and buses using the J1939 CAN Protocol.

This CANBUS signal translator is designed to provide a vehicle speed signal pulse for vehicles with a CANBUS system. It is programmed to automatically detect the vehicle type from over 30 different makes and will give a frequency output of approximately 0.62 Hz per every 1 kph (1 Hz for every 1 mph).

Despite the low cost, this CAN BUS interface features built-in diagnostic LEDs to indicate CAN BUS status and speed pulse output to aid the installation process.

Vehicle Coverage
Please note: All connections are for guidance only and to the best of our knowledge; some Australian models may be different. We cannot be held responsible for changes made by the vehicle manufacturer, they only act as a guide for fitting.

US Vehicles:

• Please note: All connections are for guidance only and to the best of our knowledge. We cannot be held responsible for changes made by the vehicle manufacturer, they only act as a guide for fitting.
• GM / Cadillac:
  • Equinox
  • Tahoe
  • Suburban
  • Impala
  • Cobalt
  • Cadillac CTS
  • Cadillac DTS
  • Escalade
  • Cadillac XLR
  • Cadillac SRX
• Ford:
  • Crown Victoria
  • Edge
  • Expedition
  • Five Hundred
  • Focus
  • Freestyle
  • Escape
  • Explorer
  • Ecoroline vans
  • F150, F250, F350, F450
  • Ranger trucks
  • Taurus

Installation

The CANBUS uses two wires for data transmission. One is called CAN HIGH and the other is called CAN LOW (sometimes marked as "CAN+" and "CAN-" respectively). The CANBUS connections on the CANBUS interface should be connected to the appropriate CANBUS connections with an insulated solder joint. Do not cut the CANBUS wires.

IMPORTANT NOTICE: All connections are for guidance only. Vehicle manufacturers can vary wiring from model to model. It is advisable to check the vehicle wiring diagram.

1. We recommend that the CAN HIGH and CAN LOW connections are picked up from the automatic gearbox ECU where possible, as this has the least amount of data flowing in the system. Note: it is also possible on some vehicles to pick up the CAN wires at the ignition switch, e.g. Mercedes.

2. Because manufacturers continually change the pin configuration of the plugs, it is advisable to pick up +POS and -NEG for powering the interface from an alternative supply, preferably a good ignition controlled regulated supply. A good earth is absolutely essential.

3. Connecting the CANBUS interface close to the ECU, say 5 to 10 cm away from the plug will allow room for the connectors. While the power wires CAN be extended, it is not advisable to extend the CAN HIGH and CAN LOW leads. If there is a need to extend the signal lead (orange), please ensure that it is run to its destination avoiding proximity to equipment that might give off pulses which could be picked up by this wire, such as ignition or heater fans, etc. Common sense tells you that each wire can become an aerial for extraneous signals within a vehicle environment.

4. Note that just because a vehicle has a CANBUS system, it does not necessarily mean that that CANBUS carries speed signal information. Also some vehicles can have more than one CANBUS network and usually only one carries the speed signal information.

Specifications

• Frequency approximately: 0.62 Hz per every 1 kph (1 Hz per every 1 mph).
• Output voltage: 12V square wave.
• Minimum speed approximately: 3 kph (1.7 mph).
• Approximate pulses per km: 2240 (per mile: 3600).
• Fully compatible with the ISO11898 standard.
• Bus lines protected against transients in an automotive environment.
• Differential receiver with wide common-mode range for high immunity against Electromagnetic Interference (EMI).
• Slope control to reduce Radio Frequency Interference (RFI).
• Supply voltage: 12V (from ignition or switched line).
• Approximate current draw: 30 mA.
• Low-current standby mode.
• Size: 9 mm x 31 mm x 53 mm (0.35" x 1.22" x 2.08")
• Warranty: 12 months.