Lonsdor JCD-1 & JCD-2 LCD Adapter Cable For Chrysler Jeep Dodge 2018-2021 Programming

These cables are additional adapters that connect a key programmer (like Lonsdor devices) to the security CAN bus and STAR connector in 2018+ Chrysler, Dodge, Jeep (and some Fiat/Maserati) vehicles.

Modern FCA vehicles use a Security Gateway Module (SGW) that blocks generic diagnostic access. These JCD cables bypass that security to allow the programmer to talk to the immobilizer system for functions such as:
• All‑keys‑lost key programming
• Adding spare keys
• Reading immobilizer data (when supported)

They are typically used together with the main OBD cable and proper adapter for your Lonsdor or compatible key‑programming tool.