What causes a P0736 code?

P0736 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 P0736 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0736 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

P0736

Transmission Reverse Gear Ratio Incorrect

What it means

The Transmission Control Module (TCM) has detected an incorrect gear ratio when attempting to engage or while operating in the reverse gear.