⚠️ Requires an already activated Kess3 Master Alientech device.

This product is a software extension, not a device.

WHAT THIS PROTOCOL COVERS

ECU and TCU: two distinct computer families

KESS3 processes engine control units (ECUs) by default. This activation adds support for transmission control units (TCUs).

Transmission Control Units (TCUs)

Automatic and automated manual transmissions, in addition to the engine control units already covered by your vehicle protocols (Car/LCV, Motorcycle/Quad/UTV, etc.).

All connection methods

OBD, Bench and Boot, depending on the vehicle protocol already activated on your KESS3 Master for the category concerned.

Do I need this activation?

It is useful if you also work on automatic gearboxes, cloning or reprogramming, in addition to the engine control unit.

Engine Control Unit

ECU

Already covered by your vehicle protocols by category (Cars/LCVs, Motorcycles/Quads/UTVs, Agriculture/Heavy Trucks/Buses, Boats/Jet Skis).

Gearbox

TCU: this product

Requires this dedicated activation, distinct from engine protocols.

Both Together

Complete Service

Activate the ECU and TCU to offer engine and gearbox cloning and reprogramming on the same vehicle.

Activation Requirements

How is the protocol activated?

Activation is performed remotely on your KESS3 Master device, using your Alientech ID, within 24 to 48 hours after your order

Is the protocol time-limited?

No: activation is permanent for the chosen category and mode. Only vehicle compatibility updates are covered for 12 months, and are then renewable.

Can I add more categories later?

Yes, each category and mode can be ordered separately or in a pack. You can complete your KESS3 Slave as your activity progresses.

FAQ

Does this protocol work without a KESS3 Master device?

No, this is a software extension: it requires a KESS3 Master Alientech device that you already own and have activated.

Does this activation replace my vehicle protocols (Car/LCV, Motorcycle/Quad/UTV...)?

No, it is complementary: you must already have an active vehicle protocol for the category concerned before adding TCU support.

Is this activation available for the KESS3 Slave?

It does not appear in the current Slave catalog, contact our support to check availability for your configuration.

Is the protocol different between a KESS3 Slave and a KESS3 Master?

The content of the protocol (vehicles and modes covered) is identical; only the product reference changes depending on your device version.

Do you need assistance?

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