Skip to main content Skip to main navigation Skip to side menu Skip to footer

Smart Junction Boxes

Smart Junction Boxes

Lear’s industry leading Smart Junction Box (SJB) integrates passive junction box features with electronic module functionality. It uses microcontroller-based technology to switch power and control vehicle body functions. Lear’s SJB technology utilizes a total systems approach by optimizing and integrating control and power distribution functions into a single module.

Lear’s Solid State Smart Junction Box (S3JB) replaces relays and fuses with solid state electronic drivers. These self-protecting devices improve quality and eliminate the need to service fuses and relays. S3JB technology reduces weight and packaging size up to 80%.   


  • SJB 2
Back To Top