U0121-Lost Communication With Anti-Lock Brake System (Abs) Control Module: Notes

WARNING: This page is about a different car, the 2011 RAM Dakota. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Can B Bus, Can C Bus & Diagnostic Can C Network Modules

Courtesy of CHRYSLER LLC

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .