DoIP Ethernet Bypass for 16-pin Harnesses

More and more vehicles are now using Ethernet networks, also known as DoIP (“Diagnostics over Internet Protocol”), which allow vehicle systems to transmit data at much faster speeds compared to CAN networks. Certain vehicle diagnostics are primarily available via DoIP rather than traditional CAN networks.

• HRN-BM16T22 has the 2-pin Molex connector for Ethernet (pins 3 and 11) connected by default.
• HRN-BM16T2-LD and HRN-XBM16K2-LD has a 4-pin Molex connector labeled C3/C5 (pins 3 and 11) connected by default.
• HRN-BM16T2-HD and HRN-XBM16K2-HD has a 4-pin Molex connector (pins 3 and 11) connected by default.

*This must be disconnected for any vehicles that require an Ethernet bypass to ensure that scanning tools and other equipment are not affected.

Disclaimer

This list reflects vehicles known to Geotab to use Diagnostics over Internet Protocol (DoIP) as of the last revision date. It is provided for guidance only and is not exhaustive. Vehicle manufacturers may introduce, extend, or modify DoIP usage at any time without notice, including mid-model-year and on previously listed model years. Inclusion or omission of any make, model, or year does not constitute a representation that a specific vehicle does or does not use DoIP.

Installers remain responsible for verifying whether each vehicle uses DoIP prior to installation, using the verification steps in this document, e.g., for disconnecting the DoIP (3/11) connector wherever required – including for vehicles not listed here.

Failure to follow these instructions may result in anomalous vehicle responses with OEM diagnostic tools and related service outcomes for which Geotab is not responsible.

This document is updated as new information becomes available. Always confirm you are using the latest revision before performing an installation. Reach out to your authorized Geotab representative for any questions or additional clarification needed.