What causes a P141D code?

P141D 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 P141D code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P141D 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

P141D

CCV outlet temperature sensor over range

What it means

The Engine Control Module (ECM) has detected that the Crankcase Ventilation outlet temperature sensor signal is higher than the maximum calibrated limit.