DoIP vs CAN Bus — What Changed for JLR Key Programming in 2023
DoIP vs CAN Bus: What Changed in 2023

Newer Jaguar and Land Rover vehicles moved from traditional CAN bus to DoIP (Diagnostics over IP) — faster ethernet-based communication. If your tool cannot speak DoIP, it cannot program the latest keys.
What DoIP means
DoIP runs diagnostics over an ethernet link instead of the older CAN lines, giving much faster data transfer needed by modern modules.
Why it matters for keys
Latest RFA/BCM operations expect DoIP. Lock50 HW04 tools support DoIP, so 2023+ key jobs work over OBD as normal.
Which Lock50 Tool Do You Need?
- For DoIP-era vehicles use the HW04-C Peace Edition.
- For the newest UWB/DoIP models use the HW04-C+ Tool Kit.
Frequently Asked Questions
What is DoIP on Jaguar Land Rover?
DoIP (Diagnostics over IP) is ethernet-based communication used on 2023+ JLR vehicles, replacing older CAN bus for faster data.
Does Lock50 support DoIP key programming?
Yes. The HW04 range supports DoIP for the latest JLR key jobs over OBD.
Compare the full range and choose your tool: Lock50 HW04 OBD Tools.