What causes a U0536 code?

U0536 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 U0536 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with U0536 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

U0536

Network/CAN bus communication code U0536

What it means

Invalid data received from the Sidestep Control Module. The electronic body controller is detecting corrupted or incorrect signals from the retractable step unit.