Possible causes

– Vehicle driven at a high rate of speed.

Tech notes

Ford Vehicles:
153 km/h (95 MPH) for F250/F350 130 km/h (81 MPH) for F450/F550

When is the code detected?

The ECM has detected a vehicle overspeed condition

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0297 FORD Description

Indicates the vehicle has been operated in a manner which caused the vehicle speed to exceed a calibration limit. The vehicle speed is continuously monitored and evaluated by the Power Train Control Module (PCM. The DTC is set when the vehicle speed exceed the calibrated limit set within the PCM.