What causes a P0482 code?

P0482 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 P0482 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0482 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

P0482

Cooling Fan 3 Control Circuit Malfunction

What it means

The Engine Control Module (ECM) has detected an electrical fault, such as an open circuit, short to ground, or short to voltage, in the Cooling Fan 3 control circuit.