What causes a P0768 code?

P0768 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 P0768 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0768 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

P0768

Shift Solenoid D Electrical Malfunction

What it means

The Transmission Control Module (TCM) has detected an open circuit, short to ground, or short to power within the circuit and solenoid for shift solenoid 'D'. This electrical failure prevents the TCM from controlling the specific gear ratios associated with that solenoid.