Hi William
Measuring voltage with a mutltimeter
* CAN HIGH VOLTAGE- value should normally be in between 2.5 and 3.5 Volts. Measured on a machine that is running, it will usually range between 2.7 and 3.3 Volts
* CAN LOW VOLTAGE- value should normally be in between 1.5 and 2.5 Volts. Measured on a machine that is running, it will usually range between 1.7 and 2.3 Volts
If you cannot find the right wire you can ask for a wiring diagram. For wiring diagram (ALLCANN300/LV200/CANCONTROL) please kindly contact your sales manager. If you don't have any contacts with our Sale managers, please contact with them on our official website https://teltonika-gps.com/ and click on the "Contact Us" button. When you will click, please fill the form and submit it. Note: as a topic, please choose "Vehicle telematics". Or you can send an e-mail with description of your situation to info@teltonika.lt
Best Regards,
Maynard