Launch DoIP Connect Cable for CRP123X/E/I V3, CRP129X/E/I V3 & CRP129 PLUS V3 – Diagnostic Adapter for Ethernet-Based DoIP Vehicles
Der Launch DoIP Connect Cable / Adapter is a dedicated diagnostic communication accessory designed to add DoIP (Diagnose über Internetprotokoll) capability to compatible Launch Creader Professional V3 scanners.
Using automotive Ethernet / IP communication, the adapter allows supported CRP V3 diagnostic tools to communicate with modern DoIP-equipped vehicles, including selected BMW, Mercedes-Benz, Volvo, Polestar, Jaguar, Land Rover, VAG and other platforms.
It is a practical upgrade for technicians who already own a compatible CRP V3 scanner and need access to newer vehicle architectures without replacing their existing diagnostic tool.
⭐ Key Features
Adds DoIP communication to compatible Launch CRP V3 scanners
Automotive Ethernet / IP-based diagnostics
Kompatibel mit CRP123X / E / I V3
Kompatibel mit CRP129X / E / I V3
Kompatibel mit CRP129 PLUS V3
Supports selected modern BMW F / G / I / U-Series
Supports selected newer Mercedes-Benz platforms
Supports modern Volvo & Polestar applications
Supports selected Jaguar / Land Rover vehicles
Additional VAG, GM, Nissan, Toyota & Lexus DoIP coverage
15-pin scanner-side + 16-pin OBD vehicle-side connection
Plug-and-play operation
No separate diagnostic tablet required
Uses the existing diagnostic functions of the connected CRP scanner
🔌 Compatible Launch Scanners
| CRP123 V3 Series | CRP129 V3 Series | Kompatibilität |
|---|---|---|
| CRP123X V3 | CRP129X V3 | DoIP Supported |
| CRP123E V3 | CRP129E V3 | DoIP Supported |
| CRP123I V3 | CRP129I V3 | DoIP Supported |
| — | CRP129 PLUS V3 | DoIP Supported |
| Older CRP123 Versions | Older CRP129 Versions | Verify / Do Not Assume |
| Other Launch Scanners | Other Launch Scanners | Verify Separately |
The V3 hardware designation is important. Older scanners sharing the CRP123 or CRP129 product name should not automatically be considered compatible.
🌐 DoIP Communication
DoIP – Diagnostics over Internet Protocol uses Ethernet/IP technology to provide high-speed diagnostic communication with modern vehicle electronic architectures.
| Kommunikation | Performance | Vehicle Application |
|---|---|---|
| Automotive Ethernet / IP | High Data Bandwidth | Modern Vehicle Networks |
| DoIP Protocol | Fast Data Transfer | Ethernet-Based ECUs |
| High-Speed Diagnostics | Efficient ECU Communication | Newer Vehicle Architectures |
| Multiple ECU Communication | Large Data Transfer | Premium / Modern Platforms |
| External Adapter on CRP V3 | Plug-and-Play Interface | Supported DoIP Vehicles |
DoIP does not replace conventional CAN communication. Modern vehicles can use several communication protocols simultaneously.
🚗 DoIP Vehicle Coverage
| European Premium | European / VAG | Asian / American |
|---|---|---|
| BMW | Volkswagen | Toyota |
| Mercedes-Benz | Audi | Lexus |
| Volvo | Škoda | Nissan |
| Polestar | SEAT | General Motors |
| Jaguar | Bentley | Additional Supported Brands |
| Land Rover | Lamborghini | Software Dependent |
Coverage is not universal across every vehicle from these manufacturers. Compatibility depends on the model, model year, architecture, ECU, diagnostic protocol and current CRP software version.
🔵 BMW / Mercedes-Benz / Volvo Coverage
| BMW | Mercedes-Benz | Volvo |
|---|---|---|
| F-Series | 192 – AMG GT | S60 (2019–) |
| G-Series | 206 – C-Class | S90 / S90L |
| I-Series | 214 – E-Class | V60 (2019–) |
| U-Series | 223 – S-Class | V60 Cross Country |
| Modern DoIP Platforms | 232 – SL-Class | V90 / V90 Cross Country |
| Software Dependent | 236 – GLE-Class | XC40 |
| ECU Dependent | 254 – GLC-Class | XC60 (2018–) |
| — | 294 / 295 – EQE | XC90 (2016–) |
| — | 296 / 297 – EQS | C40 |
Exact model and ECU support should always be confirmed through current Launch software.
🚘 Polestar & Land Rover Applications
| Polestar | Land Rover | Additional Coverage |
|---|---|---|
| Polestar 1 | Range Rover L405 – 2017+ | Jaguar |
| Polestar 2 | Discovery L462 – 2017+ | Additional JLR Applications |
| Ethernet-Based Architecture | Range Rover Sport L494 – 2017+ | Software Dependent |
| DoIP Communication | Discovery Sport L550 – 2019+ | Model / ECU Dependent |
Additional applications may be available depending on current Launch software coverage.
🔍 Diagnostic System Access
When connected to a supported DoIP vehicle, the adapter provides the required communication path while the CRP scanner determines the available diagnostic functions.
| Powertrain & Safety | Body & Comfort | Additional Systems |
|---|---|---|
| Motor | Body Electronics | Battery Management |
| Getriebe | HVAC | ADAS-Related Modules |
| ABS | Instrument Systems | Gateway Systems |
| SRS / Airbag | Steering | Additional Supported ECUs |
| Vehicle-Specific ECUs | Manufacturer Systems | Software-Dependent Systems |
The adapter does not upgrade the scanner's diagnostic function level. Available systems, reset functions, live data, Auto VIN and special functions remain determined by the connected CRP scanner and its software.
⚙️ Technische Spezifikationen
| Product Information | Kompatibilität | Connection & Operation |
|---|---|---|
| Product: Launch DoIP Adapter | CRP123X V3: Unterstützt | Protocol: DoIP |
| Type: Communication Adapter | CRP123E V3: Unterstützt | Technology: Ethernet / IP |
| Application: DoIP Diagnostics | CRP123I V3: Unterstützt | Scanner Connector: 15-Pin Female |
| Vehicle Type: DoIP Equipped | CRP129X V3: Unterstützt | Vehicle Connector: 16-Pin Male OBD |
| BMW F/G/I/U: Supported* | CRP129E V3: Unterstützt | Installation: Plug-and-Play |
| Mercedes-Benz: Supported* | CRP129I V3: Unterstützt | Standalone Operation: Nein |
| Volvo / Polestar: Supported* | CRP129 PLUS V3: Unterstützt | Scanner Included: Nein |
| JLR / VAG: Supported* | Older CRP Versions: Verify | CAN FD: Nein |
| Software: Scanner Provided | Vehicle Coverage: Software Dependent | Diagnostic Functions: Scanner Dependent |
*Supported applications only; exact vehicle and ECU coverage varies.
🆚 DoIP vs Conventional CAN
| DoIP | Traditional CAN | Difference |
|---|---|---|
| Ethernet / IP | CAN Bus | Different Communication Technology |
| High Bandwidth | Lower Bandwidth | Faster Data Capability |
| Modern Architectures | Widely Used | Vehicle Dependent |
| Large Data Transfer | More Limited | Optimised for High Data Loads |
| External Adapter on CRP V3 | Standard Communication | Different Hardware Requirements |
| DoIP Vehicle Required | CAN Vehicle Required | Protocol Dependent |
🆚 DoIP Adapter vs CAN FD Adapter
| DoIP Adapter | CAN FD Adapter | Key Difference |
|---|---|---|
| Ethernet / IP Communication | CAN Flexible Data Rate | Different Protocols |
| DoIP-Equipped Vehicles | CAN FD-Equipped Vehicles | Vehicle Dependent |
| BMW F/G/I/U Applications | High-Speed CAN Networks | Separate Hardware |
| Newer Mercedes Applications | CAN FD Applications | Not Interchangeable |
| Volvo / Polestar | Supported CAN FD Vehicles | Different Communication Method |
| Jaguar / Land Rover | Vehicle Dependent | Verify Required Protocol |
DoIP and CAN FD are different communication protocols. The DoIP adapter does not provide CAN FD capability. A separate compatible Launch CAN FD adapter is required where CAN FD communication is needed.
🔄 Software & Setup Requirements
| Before Connection | Verbindung | Before Diagnosis |
|---|---|---|
| Confirm V3 Scanner | Connect Adapter to Scanner | Switch Ignition as Required |
| Verify Exact CRP Model | Connect 16-Pin OBD to Vehicle | Identify Vehicle |
| Update Scanner Software | Check Secure Connection | Open Manufacturer Software |
| Install Required Brand Software | Use DoIP Adapter | Confirm DoIP Support |
| Verify Vehicle Coverage | No Separate Tablet Required | Begin Diagnosis |
Communication hardware alone cannot provide vehicle coverage that is absent from the scanner's diagnostic database.
📦 Lieferumfang
| Accessory | Name |
|---|---|
| DoIP Connection Adapter | Launch DoIP Adapter Standard Kit / Main DoIP Connection Cable |
| Documentation | User Manual / Instruction Documentation |
Diagnostic scanner is not included unless specifically stated as part of a bundle.
⚠️ Important Compatibility Information
| Scanner Requirements | Vehicle Requirements | Adapter Limitations |
|---|---|---|
| Compatible CRP V3 Model | Vehicle Must Support DoIP | No Standalone Operation |
| Correct Hardware Generation | Supported Model / Year | Does Not Add Service Functions |
| Current Launch Software | Supported ECU Architecture | Does Not Add Bi-Directional Control |
| Required Brand Software | Current CRP Coverage | Does Not Add ECU Coding |
| Software / Subscription Valid* | Correct Diagnostic Protocol | Does Not Provide CAN FD |
| Exact Model Verified | DoIP Requirement Confirmed | Scanner Not Included |
Before ordering, verify the exact CRP model and V3 hardware generation.
DoIP compatibility should not be assumed simply because a vehicle is new or because a scanner shares the CRP123/CRP129 product name.
Why Choose the Launch DoIP Adapter?
Der Launch DoIP Connect Cable / Adapter provides a cost-effective way to expand compatible CRP123 and CRP129 V3 scanners with modern Ethernet-based DoIP vehicle communication.
Instead of replacing an otherwise capable CRP V3 diagnostic scanner when working with newer vehicles, technicians can add the dedicated adapter and access supported BMW, Mercedes-Benz, Volvo, Polestar, Jaguar, Land Rover and other DoIP-equipped platforms.
For workshops and advanced users working with increasingly common Ethernet-based vehicle architectures, it provides a simple plug-and-play communication upgrade while retaining the existing diagnostic functions of the compatible Launch CRP V3 scanner.





