Adapter for 1996-2002 Mercedes-Benz vehicles with 38-pin port under the hood. Available only with the purchase of a YOUCANIC UCAN-II full-system scanner. This adapter allows you to access all control modules and systems on the models with the 38-pin port. Without this adapter, you may only be able to access the engine control unit if your Mercedes-Benz is between 1996 and 2002 and has the 38-pin port. 

This adapter is only available for customers who have purchased the YOUCANIC full-system scanner. 

See models with 38 pin port

Pre-1996 models may or may not be supported. 

The YOUCANIC 12+8 Adapter is a must-have accessory for automotive professionals and DIYers who need full diagnostic capabilities on late-model FCA  vehicles (see list below).

 This adapter is specifically designed to bypass the factory-installed Security Gateway Module (SGM) — a system that blocks most aftermarket scan tools from performing advanced diagnostics beyond basic code reading and live data.

Without this adapter or AutoAuth credentials, scan tools attempting to communicate with FCA vehicles equipped with an SGM will display errors such as:

“Device unable to communicate with the control unit.”

This adapter allows your YOUCANIC Full System Scanner (and other scan tools) to seamlessly access all modules for bi-directional control, active tests, resets, adaptations, and advanced diagnostics — just like the dealership scan tools.

✅ Compatible FCA Brands:

• Chrysler

• Dodge

• Jeep

• RAM

• Fiat

• Maserati
  

• Alfa Romeo

📌 Common affected models include: Grand Cherokee, Wrangler, Charger, Challenger, Pacifica, 300, RAM 1500+, and more.

🔒 What is a Security Gateway Module (SGM)?

Starting in 2018, FCA began installing SGMs in most of their vehicles as a cybersecurity measure. While it protects the vehicle network, it also blocks aftermarket scan tools from sending commands or performing service functions — unless bypassed.

Estimated SGM Implementation by Model Year:

• 2017: ~20% of vehicles

• 2018: ~50% of vehicles

• 2019: ~90% of vehicles

• 2020+: ~100% of vehicles

🔌 How the Adapter Works:

• Connects to the YOUCANIC Full System Scanner (UCAN-II-C )

• Plugs directly into the vehicle’s 12+8 diagnostic port

• Bypasses the SGM for full access to all vehicle modules, including:

  • ABS

  • Airbag

  • Transmission

  • Body control module

  • Climate control

  • Steering and more

🔍 SGM Location:

The Security Gateway Module is typically located in:

• Behind the glove box

• Passenger side kick panel

• Behind the infotainment/radio unit

⚠️ Important Compatibility Note:

This adapter is only for verified YOUCANIC scanner owners.
If you purchase this adapter without owning a YOUCANIC full system scanner, your order will be canceled.

💡 Already own the scanner? Be sure to use the same email address from your scanner order during checkout to verify eligibility.

📦 What’s Included:

• 1x FCA 12+8 Bypass Adapter
  

🛠️ Bring Dealership-Level Access Home

Skip the limitations and unlock your vehicle’s full potential with the YOUCANIC 12+8 Adapter. Whether you’re a shop tech or an advanced DIYer, this tool gives you complete control — no subscriptions or AutoAuth required.

FCA / Stellantis Brands with SGW (Security Gateway Module)

Chrysler

• Pacifica – 2018+

• 300 – 2018+

Dodge

• Charger – 2018+

• Challenger – 2018+

• Durango – 2018+

• Journey – 2018+ (last model year 2020, still had SGW)

Jeep

• Wrangler JL / JLU – 2018+

• Grand Cherokee (WK2) – 2018+

• Cherokee (KL) – 2018+

• Compass (MP) – 2018+

• Renegade (BU) – 2018+

• Gladiator (JT) – 2020+ launch model included SGW

Ram

• 1500 (DT new body) – 2019+ (Classic DS kept older architecture a bit longer, some trims w/o SGW until later)

• 2500 / 3500 (HD trucks) – 2019+

• ProMaster – 2019+

• ProMaster City – 2019+

Fiat

• 500 – 2018+ (North America discontinued after 2019 but still had SGW in those years)

• 500X – 2018+

• 124 Spider – Some late builds included SGW before discontinuation in 2020

Alfa Romeo

• Giulia – 2018+

• Stelvio – 2018+

• Tonale (newer, 2023+) – SGW from launch

Maserati

• Ghibli – 2018+

• Levante – 2018+

• Quattroporte – 2018+

• MC20 & other recent models – all have SGW

Key Clarifications

• 2017 and earlier FCA vehicles generally do not have SGW.

• 2018 model year onward: SGW became the standard across nearly every FCA/Stellantis brand, though some overlap years (like Ram DS “Classic” trucks) had mixed configurations.

• Even commercial and fleet models (ProMaster, ProMaster City) eventually received SGW after 2019.

Very Limited Stock 

Open-box YOUCANIC Scanners offer all the benefits of a brand-new device at a reduced price, including free lifetime updates and a one-year warranty. Rest assured, the scanner has been thoroughly tested, remains unregistered, and is in excellent condition.

The YOUCANIC Scanner (Open Box) offers incredible value, complete with all original accessories included. Each unit comes with:

• Scanner
• Manual
• VCI Bluetooth Adapter
• Hard Carrying Case
• Wall Charger

*Free lifetime updates included. 

This open-box unit has been thoroughly tested, remains unregistered, and includes the same warranty as a new device. It offers the same premium functionality and performance that YOUCANIC is known for.

With limited stock available, this is a fantastic opportunity to get a powerful diagnostic tool at a reduced price. Act now, supplies won't last long!

NOTE: This Open-box scanner does NOT come with a videoscope.

The All-in-One Scanner for Trucks, Buses & Equipment

The UCAN-HD-A is a premium-grade diesel diagnostic scanner built for real-world technicians, fleet managers, and owner-operators. Designed to match or exceed dealer-level functionality, it delivers the critical functions professionals need daily — without subscription fees.

💥 What Mechanics & Fleet Operators Love About It:

✅ Fast Boot-Up + Glove-Friendly Touchscreen

• Daylight-readable touchscreen responds even with gloves

• Boots in seconds with Android OS for smooth multitasking

✅ Covers What Really Matters

• Works with Freightliner, Cummins, Volvo, CAT, PACCAR, Isuzu, Hino, and more

• Covers Class 4–8 trucks, buses, and off-highway equipment

• Supports J1939, J1708, J1587, CAN, KWP2000, ISO9141-2, SAE J1850

🔍 Deep Diagnostic Power — Beyond Just Reading Codes

✔️ Full-System Diagnostics:

• Scan Engine, Transmission, ABS, SRS, BCM, TCM, TPMS, HVAC, and more

• View Freeze Frame, Live Data, ECU Info, and permanent DTCs

✔️ Live Sensor Graphing & PID Merge:

• Graph multiple sensors in real-time

• Merge data streams for quick comparative diagnosis

✔️ Bi-Directional Controls (Active Tests):

• Command DPF regen, DEF pump, turbo actuators, EGR valve, fans, throttle body, etc.

✔️ VIN Auto-ID & Fast ECU Access:

• Instantly identifies vehicle by VIN

• Retrieves the full ECU tree structure and modules in seconds

 Smart Special Functions Mechanics Actually Use

🟩 DPF Regeneration (Stationary + Driving)

• Force soot burn-off

• Monitor soot level, exhaust temp, regen history

🟩 Injector Cutoff & Coding

• Disable specific injectors for diagnosis

• Code replacements for proper calibration

🟩 Cylinder Balance Test

• Detect misfiring, weak, or low-contribution cylinders

🟩 Speed Limit Settings (Road + Engine Governor)

• View/set speed governor

• Adjust idle RPMs

🟩 ABS Bleeding

• Perform ABS module bleeding after service

🟩 SCR/DEF Diagnostics

• Reset fluid levels

• Monitor NOx sensors

• Test DEF doser pump

🟩 Throttle/EGR/Boost Tests

• Command EGR valve open/close

• Activate turbo boost solenoids

🟩 Sensor Calibrations & Reset Functions

• Oil/service reset

• TPMS, steering angle, battery, DPF counter resets

🛠 Workshop-Ready Features

• One-Touch WiFi Update — Always up to date with free lifetime software

• Print & Email Diagnostic Reports — Directly from the scanner

• Cloud Storage & USB Export — Save job history, export logs

• Supports Remote Support — Get help when needed

📦 What’s Included

• UCAN-HD-A Diagnostic Tablet

• VCI Bluetooth Adapter

• Full Heavy-Duty Adapter Kit (6/9 pin, OBD2, etc.)

• USB charging cable & wall charger

• User manual

• Rugged carrying case

📐 Technical Specs

• Display: 7" TFT LCD (Daylight-readable, glove-friendly)

• OS: Android 9.0

• Processor: 1.3GHz Quad-core

• Memory: 2GB RAM + 64GB Storage

• Battery: 5000mAh lithium-polymer

• Operating Temp: -10°C to 70°C

• Connectivity: WiFi, Bluetooth, USB

• Protocols: J1939, J1708, CAN, ISO9141, and more

🔧 Professional Support

• 12-Month Manufacturer Warranty

• Free Lifetime Software Updates

• Email-Based Tech Support (U.S.-Based)

• Remote Assistance via TeamViewer

Supported Models

Top 40 Most Used UCAN-HD-A Scanner Functions

Core Diagnostic Functions

1. Full system diagnostic scan for trucks and buses

2. Read fault codes from all control modules

3. Clear fault codes after repairs

4. Live data stream viewing

5. ECU information and module identification

6. Freeze frame data

7. Automatic quick scan of all systems

8. Manual control module selection

9. Diagnostic report generation (PDF)

10. Vehicle history and scan records

Advanced & Bidirectional Functions

11. Active tests (bi directional control)

12. Injector cutoff test (cylinder contribution test)

13. Actuator tests for engine components

14. Command component ON/OFF for diagnostics

15. Fuel system testing via active commands

16. ABS actuator testing

17. Engine system functional tests

Diesel Specific & Emissions

18. DPF regeneration (manual forced regen)

19. Ash service regeneration

20. DPF differential pressure monitoring

21. Diesel emissions diagnostics

22. NOx related diagnostics (where supported)

23. Diesel engine live sensor monitoring

24. Exhaust temperature monitoring

Engine & Powertrain

25. Engine speed limit setting

26. Vehicle road speed limiter adjustment

27. Transmission live data monitoring

28. Engine parameter configuration (supported models)

29. Turbo boost pressure monitoring

30. Fuel rail pressure live data

ABS & Safety Systems

31. ABS system diagnostics

32. ABS live data and wheel speed monitoring

33. Brake system fault diagnosis

34. ABS fault code clearing

Utility & Professional Tools

35. CAN bus pin detection and voltage testing

36. OBD protocol pin testing

37. Data playback and graph comparison

38. Multi-graph and merged graph live data

39. Remote diagnostic support via TeamViewer

40. Shop manager with vehicle and customer records

Quick Notes

• Coverage varies slightly by truck brand, model, and ECU software, which is normal for all professional scan tools

• UCAN-HD-A supports J1939, J1708, CAN FD, DOIP, making it future ready

• This is a true heavy duty scanner, not a light duty tool with limited HD add-ons

🏁 Built to Make You Faster, Smarter & More Profitable

Whether you're chasing down an intermittent injector issue or resetting a DPF after a turbo install, the YOUCANIC UCAN-HD-A has your back — without subscriptions or annual renewals. Whether you're clearing a check engine light, performing a forced DPF regen, or troubleshooting injector misfires, the YOUCANIC UCAN-HD-A is built for the most common heavy-duty diagnostic needs. Mechanics often rely on this scanner for functions like reading and clearing fault codes, ABS brake bleeding, DEF/SCR system diagnosis, live data streaming, and injector cut-off tests. Fleet managers use it for speed limiter adjustments, idle RPM calibration, and resetting maintenance/service lights. It also supports VIN auto-detection, cylinder contribution/balance testing, turbo actuator control, EGR system tests, and more — all without needing dealer software.

🤝 Designed & Supported in the USA

The YOUCANIC UCAN-HD-A is proudly designed and supported in Towson, Maryland USA. We're not an overseas brand — we're a team of real technicians and engineers based in Towson, MD who understand diagnostics because we use them too.

We're here to help you get the job done — fast and right. When you buy YOUCANIC, you’re not just getting a powerful scanner — you’re gaining a support team that’s got your back.

The YOUCANIC DOIP (Diagnostics Over Internet Protocol) Adapter is a powerful tool designed for automotive professionals, advanced DIYers, and repair shops working on the latest high-tech vehicles. As modern vehicles shift from traditional CAN-based protocols to Ethernet-based diagnostics (DOIP), this adapter ensures you’re equipped to perform fast, accurate, and complete system diagnostics.

Paired with the YOUCANIC Full System Scanner, this adapter unlocks dealer-level access to modules in today’s most advanced vehicles — including ADAS, hybrid drivetrains, EV systems, and next-gen infotainment units.

🔧 Key Benefits & Features:

⚡ DOIP Compatibility

Diagnose vehicles using high-speed Ethernet-based communication, delivering:

• Faster data transfer

• Lower latency

• Greater reliability than traditional OBD-II protocols

🎯 Full System Access for High-Tech Vehicles

Gain access to critical control units in:

• ADAS (Advanced Driver Assistance Systems)

• Hybrid and electric powertrains

• Infotainment and digital cockpit systems

• Battery management systems (BMS)

✅ Plug & Play Simplicity

No setup required; just connect and scan.

• Step 1: Plug into the vehicle’s OBD-II port

• Step 2: Connect to your YOUCANIC scanner

• Step 3: Start diagnosing like a pro

🧠 Why the YOUCANIC DOIP Adapter is Essential

Starting with the 2023 model year vehicles, many automakers have moved toward Ethernet-based diagnostics. Standard scan tools are no longer sufficient for full access — especially on luxury brands and EVs.

With the YOUCANIC DOIP Adapter, you’re future-proofing your diagnostic capabilities and ensuring compatibility with the latest automotive protocols.

🔄 Compatible with Popular 2023+ Models:

Mercedes-Benz

• E-Class (W214)

• S-Class (W223)

• GLE, EQS, EQB, EQE

BMW

• 3 Series (G20)

• 5 Series (G60)

• X5 (G05)

• i4, iX, i7

Audi

• A6, A8, Q8 e-tron

• Audi Q4 e-tron (EV)

Volkswagen

• ID.4, Tiguan, Arteon

Porsche

• Taycan, Panamera, Cayenne

Land Rover

• Range Rover, Range Rover Sport, Defender

Volvo

• XC90, XC60, S90, Recharge models

Jaguar

• I-PACE (EV), F-PACE

⚠️ Note: Some late-2022 models may also support DOIP.

🛠️ What You Can Do with the YOUCANIC DOIP Adapter:

• Perform full-system scans

• Clear trouble codes (DTCs)

• Run active tests and adaptations

• Access cameras, sensors, throttle, and steering

• Diagnose and repair EV systems, ADAS modules, infotainment units, and more

🔐 Designed Exclusively for YOUCANIC Scanners

The DOIP adapter is engineered to work exclusively with the YOUCANIC Full System Diagnostic Scanner (UCAN-II-C or UCAN-II-P). It integrates seamlessly for a hassle-free, professional-grade diagnostic experience.

📦 What’s in the Box:

• 1x YOUCANIC DOIP Adapter

Be Ready for What’s Next in Automotive Diagnostics

Modern vehicles require modern solutions. The YOUCANIC DOIP Adapter empowers you to diagnose, repair, and maintain the most advanced cars on the road — from European luxury brands to next-gen electric vehicles.

Whether you're running a shop or working on your own car, don’t get left behind by outdated scan tools. Upgrade your toolbox today with the YOUCANIC DOIP Adapter.

WaveScope 4C Pro is a professional 4-channel automotive oscilloscope engineered for modern vehicles. With 100 MHz bandwidth, 1 GSa/s real-time sampling, and 50 Mpts memory depth, it captures fast transients, high-resolution crank/cam correlation, injector current ramps, CAN/LIN/FlexRay frames, and charging system ripple with lab-grade accuracy. Pair it with our Android app for guided tests and mobile portability in the bay or on the road.

Why technicians choose WaveScope 4C Pro

• 4 isolated BNC channels for multi-sensor correlation (crank, cam, primary/secondary ignition, injector, fuel pump, MAF/MAP, throttle, O2/AFR, ABS).
• Fast acquisition: up to 1 GSa/s sampling, ≤ 3.5 ns rise time, and deep 50 Mpts capture for long recordings without decimation.
• Automotive-ready triggers: Edge & Pulse with Automatic/Normal/Single modes for intermittent faults and glitch hunting.
• Built-in auto measurements: frequency, period, duty cycle (positive/negative), pulse widths, rise/fall time, phase, peak-to-peak, RMS, min/max/avg, cycle RMS/mean.
• Guided test library for Circuits, Sensors, Actuators, Ignition, Networks, and Combination tests—ideal for repeatable diagnostics and training.
• Mobile workflow: Android application (Android 7.0+) with Type-C connectivity for ultimate portability in the field.
• Rugged enclosure with cable support, calibration square-wave output, and compact footprint for cart or passenger seat use.

Typical Automotive Use Cases

• Engine management: crankshaft/camshaft sync, VVT control, ignition primary/secondary, injector voltage & current ramp, coil-on-plug (COP) analysis.
• Charging/starting: starter current, 12 V/24 V cranking voltage drop, alternator ripple, diode faults.
• Actuators: PWM fans, EGR/Evap solenoids, electronic throttle control, fuel pump command/feedback.
• Sensors: MAF/MAP, TPS, Hall/inductive, knock, oxygen/AFR, wheel speed/ABS, pressure and temperature transducers.
• Networks: CAN Low/High, CAN FD, LIN, FlexRay, K-Line—frame integrity, wake-up, line bias, and noise checks.
• Combination tests: multi-channel correlation (e.g., crank + cam + injector + ignition) to pinpoint timing or synchronization faults.

Technical Specifications

What’s in the Kit

• Large dolphin/gator clips × 2
• Auto high-pressure ignition probe × 1
• Acupuncture probe set × 1
• Multimeter probes × 2
• Auto test cables × 4
• Attenuator × 2
• Break-out lead × 1
• Dolphin/gator clip cables × 2
• COP (coil-on-plug) extension cord × 1
• AC to DC power supply adapter × 1
• USB-A/C to USB-C cable × 1

Mobile App & Connectivity

Install the WaveScope Android application (Android 7.0 or later) and connect via USB Type-C. Use the built-in calibration square-wave output to compensate probes and verify channel performance before testing.

Designed for Professional Diagnostics

• High-resolution captures with deep memory for long crank/no-start recordings without losing timing detail.
• Noise-robust inputs with proper 1 MΩ/14 pF impedance for accurate sensor signal loading.
• Single-shot triggering to catch one-time misfires, dropout events, network wake-ups, and injector anomalies.
• Comprehensive guided library to standardize test hookup, scaling, and waveform interpretation.

What you can diagnose with WaveScope 4C Pro

Misfires, no-starts, cam/crank sync errors, stretched timing chains, weak coils, saturated injectors, shorted solenoids, alternator diode ripple, PWM control issues, network wiring faults (short-to-ground/short-to-VBAT), and intermittent harness/connectivity problems.

Included Calibration & Safety

• Front-panel calibration square-wave source for probe compensation and channel verification.
• Guided notes for safe connection using piercing probes and alligator clips.

What this scope replaces

4-channel handheld lab scope, DSO for automotive, CAN bus oscilloscope, ignition scope, injector current probe scope, engine analyzer, and network analyzer for CAN/LIN/FlexRay diagnostics.

Specifications Snapshot

Bandwidth 100 MHz | 4 Channels | 1 GSa/s | 50 Mpts | ≤ 3.5 ns rise time | Android app | Type-C | 

Compare WaveScope 4C Pro with Other Automotive Oscilloscopes

Pricing is approximate and based on typical retail listings as of 2025. YOUCANIC WaveScope 4C Pro provides comparable performance at nearly half the price of competing 4-channel 100 MHz automotive oscilloscopes.

This 22-inch extension cord lets you connect your VCI to your car's OBD-II port from a distance. Does not come with the VCI. Can be used with any scan tool or OBD-II port.