What causes a P0695 code?

P0695 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 P0695 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0695 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

P0695

P0695 - Cooling Fan 3 Control Circuit Low

What it means

The Engine Control Module (ECM) has detected a short to ground or a voltage lower than expected on the Fan 3 control relay or PWM circuit. This indicates a failure in the electrical path responsible for high-speed fan engagement.