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RDSX Software
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Get Started with RDSX
Download and install RDSX to permanently fix emission system faults and apply calibration modifications via your existing PassThru device.
Select Your Vehicle Brand
Available Modifications
Click on a brand below to see supported ECUs and available functions
Renault
2 ECUs View
Dacia
2 ECUs View
Nissan
2 ECUs View
Fiat
3 ECUs View
Mercedes-Benz
1 ECU View
Volkswagen
4 ECUs View
Audi
4 ECUs View
MAN
4 ECUs View
Skoda
4 ECUs View
SEAT
4 ECUs View
Renault
2 Supported ECU Models
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
Dacia
2 Supported ECU Models
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
Nissan
2 Supported ECU Models
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
Fiat
3 Supported ECU Models
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
Emissions Systems Restriction Off
Tap to see details
The engine will start every time, will not block engine start because of AdBlue issue, and will not reduce power because of DPF and EGR. One single operation covers all three emissions subsystems at the ECU calibration level.
This tool cannot clear, fix, or remove dashboard warning lights, instrument-cluster error icons, or DTC fault codes.
If the vehicle has active DTCs or dashboard warnings, they will remain after the procedure. The tool only writes the requested modification — it does not perform diagnostic repairs. Any stored fault codes must be cleared separately with a standard diagnostic tool.
Start/Stop Off
Tap to see details
Permanently disables the automatic engine start/stop system at calibration level. Survives battery disconnects and ECU resets.
Speed Limiter Off
Tap to see details
Removes the factory-set top speed limitation from the ECU calibration. Ideal for commercial vehicles with restricted speed caps that limit highway driving.
Torque Monitoring
Tap to see details
Resets and recalibrates torque monitoring thresholds. Clears torque limitation flags caused by failed regeneration cycles or sensor drift.
MAP Recalibration
Tap to see details
Adjusts manifold absolute pressure sensor calibration tables. Corrects boost control behavior after turbo or intake modifications.
Cold Start Glow Plug
Tap to see details
Disables glow plug monitoring and fault detection. Prevents dashboard warnings and limp mode from faulty glow plug circuits without replacing hardware.
TVA Deactivation
Tap to see details
Deactivates the throttle valve actuator control in the intake system. Eliminates TVA-related fault codes and removes intake restriction for improved airflow.
ESCL Steering Column Lock Disable
Tap to see details
Permanently disables the Electronic Steering Column Lock (ESCL / ELV) at module level over OBD. Resolves steering-lock failures that immobilize the vehicle and block engine start, without replacing the mechanical lock unit. All Fiat vehicles equipped with an SGW module are supported — the ESCL write completes over OBD once the Security Gateway is bypassed.
Mercedes-Benz
1 Supported ECU Model
SCR / AdBlue Fix
Tap to see details
Permanently resolves AdBlue and SCR system faults on the Mercedes MRD1 ECU. Eliminates NOx sensor errors, dosing unit failures, and countdown warnings without replacing hardware. Includes Mercedes-specific EZS unlock so the write completes on the vehicle.
Volkswagen
4 Supported ECU Models
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
Audi
4 Supported ECU Models
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
MAN
4 Supported ECU Models
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
Skoda
4 Supported ECU Models
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
SEAT
4 Supported ECU Models
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
LaunchBoost
Tap to see details
Removes all factory power limits, improves acceleration and throttle response, and disables braking intervention during hard launches and launch control. The difference is especially noticeable in acceleration performance. If the vehicle is equipped with SFD 1 or SFD 2, the following modules must be unlocked before the operation:
✓ Live Proof
Start Authorization Prohibited — Engine Starts Anyway
Renault MD1CS016 — Emissions Restriction Off applied via RDSX.
Engine start authorization is prohibited by the ECU due to AdBlue system fault. Engine still starts.
Security Gateway (SGW) Notice
Vehicle Equipped with SGW? It Must Be Bypassed First.
All Renault, Dacia, Nissan, and Fiat vehicles from 2022 and newer may be equipped with a Security Gateway (SGW) module. The SGW blocks third-party diagnostic tools from writing to the ECU over OBD.
If your vehicle has an SGW, it must be unlocked or bypassed before RDSX can perform any Digital Block Write operation. Without SGW bypass, the ECU will reject all write commands from the OBD port.
Renault 2022+
Dacia 2022+
Nissan 2022+
Fiat 2022+
Watch How It Works
RDSX Software Tutorial
Complete walkthrough of installation, connection, and ECU modification process