What causes a P0680 code?

P0680 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 P0680 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0680 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

P0680

P0680 Glow Plug Control Circuit Open Cylinder 10

What it means

The engine control module (ECM) detects an open circuit, high resistance, or a failure in the glow plug control circuit specifically for cylinder number 10. This typically affects high-displacement V10 or V12 industrial/heavy duty diesel applications.