Adapters

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.

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.

Lost your original adapter? This replacement wireless adapter is specifically designed for the YOUCANIC UCAN-II-B and UCAN-II-C models.

Please note: This adapter is not compatible with the wired version of the YOUCANIC scanner UCAN-II or UCAN-II-A.

Ready to set your new adapter up? We have a YouTube video for that.  Click here!

https://www.youtube.com/watch?v=7R6zRDt6GDc

Please note: Due to high demand and limited stock, shipping on this item may be slightly delayed.

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.