What causes a P0617 code?

P0617 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 P0617 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0617 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

P0617

Starter Relay Circuit High Fault

What it means

The engine control module (ECM) detects a voltage signal from the starter relay circuit that is higher than the calibrated threshold, typically indicating a short to power.