Manufacturer: Renault, Dacia and Opel
Brands: Sagem, Valeo, Johnson Controls
Model: S3000
Function: Immo off, immo virgin
Emulator: No
What is Sagem / Valeo / Johnson Controls S3000 ECU?
The Sagem / Valeo / Johnson Controls S3000 ECU is used across selected Renault, Dacia and Opel vehicles and manages engine control together with the immobilizer system. When immobilizer authorization fails due to key loss, transponder issues, or ECU data corruption, the engine may crank but will not start because injection or ignition is blocked.
These failures are commonly encountered in ECU repair environments and often require an immobilizer data solution to restore vehicle functionality.
Sagem / Valeo / Johnson Controls S3000 Immo Off Solution
An immo off solution for Sagem / Valeo / Johnson Controls S3000 disables the immobilizer function directly inside the ECU software. This allows the engine to start without immobilizer authorization, which is particularly useful when keys are lost or synchronization between the ECU and immobilizer system is no longer possible.
This procedure is typically used in ECU cloning, replacement, or repair situations where restoring original immobilizer communication is not feasible.
Using ECU tools such as CK Decode software, the original Sagem / Valeo / Johnson Controls S3000 file is loaded, processed using the immo off function, and then the modified file is written back to the ECU.
This solution should only be applied in ECU repair or off-road use cases where immobilizer modification is legally permitted.
Compatible Vehicles
Among the compatible vehicles we have:
Renault:
- Clio II 1.4i 16v 98 Hp; 1.6i 16v 110 Hp;
- Clio III 2.0i 197/201/203 Hp;
- Espace V 2.0 T 170 Hp;
- Kangoo I 1.6i 16v 110 Hp;
- Laguna 1.6i 16v 110 Hp; 2.0 T 170/205 Hp; 2.0i 136/140 Hp;
- Megane II|1.6i 16v 110 Hp; 2.0i 136 Hp; 2.0 T 230 Hp;
- Modus 1.4i 16v 98 Hp; 1.6i 16v 110 Hp;
- Scenic I/II/III 1.6i 16v 110 Hp; 2.0i 16v 140 Hp.
Dacia:
- Sandero II 2.0i 145 Hp
Valeo, Sagem and Johnson Controls S3000 Immo off step by step with CK Decode
CKDecode makes the Valeo, Sagem, and Johnson Controls S3000 Immo Off procedure fast, reliable, and easy to perform. With an intuitive workflow and automated file processing, CKDecode helps automotive professionals disable immobilizer systems on supported ECUs in just a few steps. Follow this step-by-step guide to complete the S3000 Immo Off process safely and efficiently.
- Download CKDecode through this link
- Click on the Functions Tab and select MANUFACTURER – SAGEM, VALEO or Johnson Controls – S3000 – Immo off
- Read MPC with your interface and upload the file
- Click Process button
- Write the file processed by CKDecode
Important notes
This solution is intended for ECU specialists dealing with immobilizer faults, ECU replacement, or data corruption issues. Always ensure proper diagnostic confirmation before applying any software modification.
