What causes a U0419 code?

U0419 can be triggered by several issues — see the verified probable causes and step-by-step diagnostics shared by mechanics and owners on OBDIY.

Can I drive with a U0419 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with U0419 active.

Follow the step-by-step diagnostic on this page, then read the verified fixes contributed by other Heavy Truck owners — the answer marked "Verified Cause" worked for the original poster.

OBDIY

OBD-II

U0419

Network/CAN bus communication code U0419

What it means

Invalid data received from Steering Column Control Module. Indicates a failure in the messages sent by the module handling steering-mounted controls and clockspring.