What causes a P0745 code?

P0745 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 P0745 code?

Drivability depends on the severity. Check the severity rating and verified driver reports on this page before continuing to drive with P0745 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

P0745

Pressure Control Solenoid A Malfunction (Transmission)

What it means

Indicates an electrical circuit failure or hydraulic performance issue within the primary pressure control solenoid (A) of the transmission control system.