TTXSPP 12+8 Pin Cable Adaptor for Chrysler/Dodge/Jeep — Autel MaxiSys SGM Bypass, Plug-and-Play

The TTXSPP 12+8 Pin Cable Adaptor unlocks full diagnostic and bi-directional control on Chrysler, Dodge, Jeep, Fiat and Ram vehicles equipped with the Security Gateway Module when used with compatible Autel MaxiSys scanners.

Many FCA vehicles from roughly 2018 onward include a Security Gateway Module (SGM) that restricts aftermarket scan tools to read-only functions. The TTXSPP 12+8 Cable Adaptor is a purpose-built wiring bridge that restores direct communication between an Autel MaxiSys tool and the vehicle network so you can perform active tests, modules programming access, and deeper diagnostics on newer Chrysler, Dodge, Jeep, Fiat and Ram models.

How does the adaptor restore communication with SGM-protected vehicles?

The adaptor bypasses the Security Gateway Module by connecting directly to the vehicle’s 12-pin and 8-pin SGW harnesses, allowing the Autel scanner to access CAN networks that the SGM would otherwise block. Installation is plug-and-play and does not require soldering or permanent vehicle modification.

• Connects to the vehicle’s existing 12-pin and 8-pin SGW connectors.
• Enables full CAN bus communication for Autel MaxiSys scanners.
• Restores bi-directional controls and active tests that SGM blocks.

Which vehicles and Autel scanners are supported by this cable?

The adaptor is intended for FCA vehicles that use the Security Gateway Module, including many models from 2013 onward but especially 2018+ lineups. It’s compatible with a wide range of Autel MaxiSys diagnostic tools so you can use familiar software and workflows.

• Common vehicle examples: 2018+ Wrangler, Grand Cherokee, Pacifica, Charger, Challenger, Ram trucks, and many 2019+ FCA vehicles.
• Also fits older models with SGW harnesses like 2013+ Ram Promaster and 2015+ Fiat 500X.
• Compatible Autel tools: MS906, MS906BT, MS906TS, MS908 series, Maxisys Elite, and other MaxiSys models.

What functions become available after installing the TTXSPP adaptor?

Once connected, your Autel scanner can run the same active tests, actuations, and advanced diagnostics that were previously blocked by the gateway. This increases repair speed and accuracy by enabling live system interactions instead of relying solely on read-only data.

• Perform active tests and module communications normally restricted by SGM.
• Access live data streams and bi-directional controls needed for troubleshooting.
• Required for unlocking most 2018 FCA vehicle functions and nearly all 2019 models.

How simple and durable is the cable for repeated shop use?

The adaptor is designed for technicians: plug-and-play setup, robust construction, and reliable signal transmission to withstand routine shop handling. Materials provide flexibility and anti-jamming performance to reduce connection issues during diagnostics.

• High-quality wire and connector housings resist wear and bending.
• Stable transmission minimizes diagnostic errors caused by poor connections.
• Easy three‑step installation: unplug SGW harnesses, connect the adaptor to both connectors, then connect your Autel tool.

Who is this for? The TTXSPP 12+8 Pin Cable Adaptor is aimed at professional technicians, independent shops, and experienced DIYers who work on modern FCA vehicles and use Autel MaxiSys scanners. If you service 2018-and-newer Chrysler, Dodge, Jeep, Fiat or Ram vehicles and need full diagnostic and active-test access beyond read-only data, this adaptor is a practical, non-destructive solution to restore bi-directional vehicle communication.

Package includes: 1 x TTXSPP 12+8 Cable Adaptor. For questions, reach out to the seller’s customer service (TTXSPP-US) for a response within 24 hours.