Land Rover Diagnostic Scanners and Adapters

Written by the YOUCANIC technicians in Towson, Maryland, from the UCAN-II Pro coverage database and our own shop work. Updated October 24, 2026.

A current Range Rover Sport carries more than fifty control units, and the parts store code reader talks to one of them. Air suspension that will not level, an electric parking brake that will not release for pads, a DPF warning on a diesel, a steering angle fault after an alignment: every one of those lives behind a module the cheap tool cannot see. The tools below are what we use in our own shop in Maryland to reach every module on a Land Rover, run the calibrations the dealer charges an hour of labor for, and get the truck back on the road. The coverage database behind the UCAN-II Pro lists the Defender, Discovery and Discovery Sport, Freelander, Range Rover, Range Rover Sport, Velar and Evoque, including the new generations, in year groups from 2014 to 2022. Pick by what you need to do, then check the one adapter rule by model year.

Which Scanner Do I Need For A Land Rover?

CHECK ENGINE LIGHT ONLY

UCAN-GO

Reads and clears engine codes from your phone and gives you a live gauge dashboard. It does not see the ABS, air suspension, parking brake, airbag or body modules, and it cannot calibrate anything. Right if the only light you care about is the engine one.

EVERY MODULE, EVERY SERVICE FUNCTION

UCAN-II Pro, new or open box

Full system, bidirectional, lifetime free updates. Reads and clears every control unit, runs active tests and the Land Rover service functions: air suspension height calibration, parking brake service position, brake bleed, DPF regeneration, steering angle and yaw rate calibration, injector resets, service interval reset and TPMS. The tool to own if you keep a Land Rover running.

ONE JOB THIS MONTH

Rent the UCAN-II Pro for a week

Same scanner, shipped both ways free, with a refundable deposit that comes back when the scanner does. For the one air suspension calibration, parking brake pad change or DPF regeneration you need done once.

What The UCAN-II Pro Does On A Land Rover

• ✓ Reads and clears codes in every control unit: 54 modules on a 2020 to 2022 Range Rover Sport, 47 on a 2021 Range Rover Evoque, from the PCM, TCM and ABS to the chassis control, gateway, HUD, camera, door and seat modules
• ✓ Air suspension: System Deflate, System Inflation, Height Calibration, Suspension geometry set up, Suspension tight tolerance control and the manufacturing or freeze mode after a strut, compressor or height sensor job
• ✓ Electric parking brake: Drive the parking brake to the mounting position for pads and rotors, back to the latching position when done, plus the Parking brake unjam procedure and the Replace brake pads operating guide
• ✓ Brake bleed routine and ABS configuration after a caliper, line or hydraulic unit replacement
• ✓ Diesel particulate filter dynamic regeneration, DPF reset, DPF pressure sensor replacement reset and DPF replacement on the diesels, with the EGR throttle and EGR valve replacement resets
• ✓ Injector replacement resets and the Injector valve test after injector work, Reset Adaptions, Oil service counter reset and Service interval reset
• ✓ Steering Angle Calibration, Steering column calibration and Yaw rate sensor calibration after a rack, column or alignment job
• ✓ Active tests on the engine, ABS, instrument pack, lighting and wiper modules: fuel pump, cooling fan, glow plug relay, turbo wastegate, ABS valves and pump relay, gauges and warning lamps
• ✓ Live data with graphing and recording, plus TPMS: Tire pressure sensor replacement and Tire pressure monitor confirmation application, and the U360 replacement sensor programmed from the tablet

Service Functions By Job On A Land Rover

On the tablet you pick the control unit, then the function category, then the routine. These are the routines the coverage database lists for Land Rover, grouped by the job you are doing. Names are as they appear on the tablet. Coverage varies by model and year, so check yours before you order.

The database lists about 8,000 Land Rover special function entries; the named active tests sit on the earlier models, so check the active test menu for your exact year.

What The Scanner Sees On A Land Rover

Two vehicles pulled from the coverage database, with the control units the UCAN-II Pro lists on each. Every unit gets fault codes, live data and, where the database shows it, active tests and special functions.

Symptom, Then The Routine That Fixes It

• Suspension fault or the truck sits low after a strut, compressor or height sensor replacement: Height Calibration, with System Inflation to bring it back up, in the ride level control functions.
• Rear pads on a model with the electric parking brake: Drive the parking brake to the mounting position before you start, Drive the parking brake to the latching position when you are done. The EPB guide walks through it.
• Spongy pedal after a caliper, line or ABS unit replacement: the Brake bleed routine cycles the pump and valves while you bleed.
• DPF warning on a diesel that mostly does short trips: Diesel particulate filter dynamic regeneration, after the codes behind it are cleared; Diesel particulate filter reset after a new filter.
• Steering angle or stability codes after an alignment or rack job: Steering Angle Calibration, then Yaw rate sensor calibration if the lateral sensor codes stay.
• Tire pressure light after new sensors: Tire pressure sensor replacement, then Tire pressure monitor confirmation application; or program the U360 sensor to the old ID first.

Frequently Asked Questions

I have a 2019 Range Rover Sport. What do I need?

The UCAN-II Pro plus the DoIP adapter. The 2018 and newer Range Rover, Range Rover Sport, Velar, Defender and Discovery run their diagnostics over Ethernet, and without the adapter most modules stay hidden.

Will it calibrate the air suspension after I replace a strut on my Range Rover?

Yes. The database lists Height Calibration, System Inflation, System Deflate, Suspension geometry set up and the manufacturing or freeze mode for the ride level control functions. Measure the ride heights at the four corners first, then run the calibration.

Can I change rear pads on a Discovery with the electric parking brake?

Yes. Drive the parking brake to the mounting position releases the motors so the pistons can be pushed back, and Drive the parking brake to the latching position puts it back in service when you are done. The parking brake guide covers the sequence.

Does it program keys or update software?

No. Key programming and software updates need the JLR server through the dealer system. The UCAN-II Pro does diagnosis, live data, active tests, calibrations and the service functions listed above.

Can I rent it for one job?

Yes. The rental is a one week rental plus a refundable deposit that comes back when the scanner does, shipped free both ways. Most Land Rover renters want an air suspension calibration, a parking brake pad job or a DPF regeneration.

How do I know my exact vehicle and function are covered?

Use the coverage checker by model, year and module, or call 1-888-959-4265, Monday to Friday 9 AM to 4 PM Eastern, and a technician will tell you plainly. If it does not do what you need, we will say so. Every scanner also comes with 31 day returns, no questions asked.

Working on a different make? See the scanners by make hub, the service functions explained one job at a time, and the step by step repair guides on youcanic.com.