What causes a P0718 code?

P0718 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 P0718 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0718 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

P0718

Input / Turbine Speed Sensor Circuit Intermittent

What it means

The Transmission Control Module (TCM) has detected an erratic or inconsistent signal from the input speed sensor, which monitors the RPM of the torque converter turbine.