What causes a U0941 code?

U0941 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 U0941 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with U0941 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

U0941

Network/CAN bus communication code U0941

What it means

Invalid data received from the Front Passenger Door Control Module. Similar to driver side, this indicates the data stream from the passenger door module is corrupt.