Does ALicar ACT V2 Support Removing PSA Group Vehicle Speed Limit?

This article provides a clear, technically accurate explanation based strictly on the documentation, avoiding assumptions or marketing exaggeration.

Core Functions of ALicar ACT V2 PSA Tool

ECU Offline Programming and Coding Platform

ALicar ACT V2 is designed as a professional offline ECU programming and coding tool, mainly for PSA-group vehicles such as:

• Peugeot

• Citroën

• DS

Its primary purpose is to extend or supplement functions not available in DIAGBOX, especially for deep-level ECU operations.

Supported Control Units (ECUs)

The tool supports programming and special operations for multiple vehicle modules, including:

• Engine Control Unit (ECU – Engine Controller)

• BSI (Body Systems Interface)

• Automatic Transmission Controller (BVA)

• ABS / ESP Systems

⚠️ The engine ECU is the module where speed limit parameters are usually stored, making it technically relevant to this discussion.

Special Functions Available in ACT V2

One-Click Modified Telecoding Features

Within the APPLICATIONS menu, ALicar ACT V2 offers a variety of predefined configuration options, such as:

• Reverse camera activation

• Trailer module enablement

• Grip Control (off-road modes)

• Downhill Control

• Sport Package activation

Important Clarification

Although these features modify vehicle behavior, “speed limiter removal” or “maximum speed unlock” is NOT listed as a standard function in the software.

Can ALicar ACT V2 Remove Speed Limits Indirectly?

Theoretical Possibility via ECU Flashing

While ACT V2 does not provide a one-click speed limiter removal option, the documentation confirms support for:

• Offline Calibration Upload (CAL Flash)

• Offline Flash Upload (ULP Flash)

This opens the door for advanced ECU modifications, including speed-related parameters — but only under strict conditions.

Deep Calibration: A2L + ULP Explained

What Is an A2L File?

An A2L file is a standardized ECU description file that defines:

• Memory addresses

• Calibration parameters

• Maps and curves

• Measurement variables

Without the correct A2L file, deep ECU calibration is not possible, as the internal structure of the ECU remains unknown.

What Is a ULP File?

Role of ALicar ACT V2

ALicar ACT V2 acts as:

• A secure offline flashing platform

• A ULP/CAL uploader

• A configuration backup and restore tool

It does not create or edit calibration data, but it can write professionally modified files to the ECU.

Critical Preconditions for ULP Modification

Correct File Matching

According to the documentation:

Calibration and Flash upload must use the correct CAL or ULP number. If the numbers do not match, SWcheck.exe must be used to confirm compatibility.

This step is mandatory to avoid ECU damage.

Mandatory Safety Procedures

Backup Is Non-Negotiable

The user manual repeatedly emphasizes:

• Always back up original ECU data before flashing

• Never interrupt the flashing process

• Follow on-screen instructions step by step

High-Risk Operation Warning

The official disclaimer states:

This software can affect and control networked electronic systems. Please fully understand the consequences of your actions.

Incorrect ULP modification may result in:

• Engine malfunction

• Vehicle unable to start

• ECU hardware damage

• Loss of warranty

• Legal or regulatory violations

Legal and Safety Considerations

Speed Limiter Modifications and Regulations

Removing or modifying speed limiters may:

• Violate local traffic laws

• Break emissions compliance

• Invalidate vehicle homologation

Always consult local regulations and certified automotive engineers before proceeding.

Final Conclusion

Direct Answer

❌ No — ALicar ACT V2 does not include a built-in function to remove vehicle speed limiters.

Extended Technical Interpretation

✅ Yes, it is technically possible only if:

• You possess the correct A2L file

• You develop or obtain a verified modified ULP file

• You fully understand ECU calibration principles

• You accept all mechanical, legal, and safety risks

Professional Recommendation