CAN-C

📖 YOUCANIC Automotive Glossary

CAN-C (Chassis CAN) is the CAN Bus network dedicated to chassis and safety-critical systems on vehicles that separate their communication networks by function. CAN-C typically carries communication between the ABS/ESC module, steering control module (EPS/EPAS), active suspension module, airbag module, and other chassis-related controllers. CAN-C operates at high speed (500 kbps) due to the safety-critical nature of the data — brake commands, stability corrections, and steering assist calculations require minimal latency. The network uses the same physical protocol as powertrain CAN but operates on separate wiring.

CAN-C faults affect the vehicle’s safety systems — a CAN-C failure can simultaneously disable ABS, ESC, and power steering assist, causing multiple warning lights. The gateway module bridges CAN-C with the powertrain CAN and body CAN networks. When the YOUCANIC UCAN-II reads U-codes from chassis modules, these often indicate CAN-C network issues that should be prioritized due to their safety implications.