What causes a P1876 code?

P1876 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 P1876 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P1876 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

P1876

Barometric pressure sensor out of range high

What it means

The Engine Control Module (ECM) detects a voltage signal from the barometric pressure sensor that is higher than the maximum calibrated limit, typically indicating a short to power or a failed internal sensor.