⚠️ Requires an activated Kess3 Master Alientech device.
This product is a software extension, not a device.



Protocol pack for KESS3 Master covering passenger cars and light commercial vehicles, combining OBD, Bench and Boot communication modes.
OBD mode reads and writes the control unit data via the vehicle's diagnostic port, without removal. Bench mode reads and writes the control unit by connecting directly to its connector. Boot mode reads and writes the control unit by connecting to specific points on its circuit board. This pack covers all access methods for this vehicle range, from older to the latest models.
The car and LCV segment represents the bulk of activity for most ECU remapping workshops.
In Master version, read files can be modified in-house or sent to a tuner of your choice.
This pack is more cost-effective than purchasing OBD and Bench-Boot activations for the same segment separately. A KESS3 device (ref. KESS3HW000) is required, along with the harnesses and adapters specific to the control units being programmed.
Pairs well with
Remote activation within 24/48 hours
Interest-free installment payments
French technical support

KESS3 Master - Car/LCV Protocol Pack OBD-Bench-Boot
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⚠️ Requires an activated Kess3 Master Alientech device.
This product is a software extension, not a device.
WHAT THIS PROTOCOL COVERS
Please check that the category and mode correspond to your usage before ordering, as the protocol cannot be changed after activation.

The three formats exist for the Car/LCV category. This product corresponds to the complete pack, highlighted below.
Quick operations
Sufficient if you almost always work from the diagnostic socket, without removing the ECU.
Bench-booted ECUs
Required for cloning or most secure ECUs that require bench or boot intervention.
OBD + Bench-Boot: this product
The most common choice to avoid having to buy a second protocol later for cars/light commercial vehicles.
Activation is performed remotely on your KESS3 Master device, via your Alientech ID, within 24 to 48 hours after the order.
No: activation is permanent for the chosen category and mode. Only vehicle compatibility updates are covered for 12 months, then renewable.
Yes, each category and mode can be ordered separately or in a pack. You can complete your KESS3 Master as your business grows.
No, this is a software extension: it requires an Alientech KESS3 Master device that you already own and have activated.
This pack combines both: you don't have to buy the OBD protocol (€2,990.00 excl. tax) and the Bench-Boot protocol (€2,490.00 excl. tax) separately for the same category.
This is the equivalent of that protocol, but extended to all vehicle categories (Cars/LCVs, Motorcycles/Quads/UTVs, Agriculture/HGVs/Buses, Boats/Jet Skis) for the chosen mode.
The content of the protocol (vehicles and modes covered) is identical; only the product reference changes depending on the version of your unit.


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