DTC P1501 - Vehicle Speed Sensor Out Of Self Test Range

WARNING: This page does not describe the selected car, but rather 26 other vehicles, including the 2020 Lincoln Navigator, 2020 Lincoln Nautilus, 2020 Lincoln MKZ, 2020 Lincoln Corsair, and 2020 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.

DTC DESCRIPTION P1501 - VEHICLE SPEED SENSOR OUT OF SELF TEST RANGE

Description:	This DTC sets when the VSS input signal is out of self-test range. If the PCM detects a VSS input signal any time during the self-test, this DTC sets and the test aborts.
Possible Causes:	Electrical noise on the VSS input signal from radio frequency interference or electro magnetic interference External sources, such as ignition wires, the charging circuit or aftermarket equipment
Diagnostic Aids:	Verify the VSS input is 0 km/h (0 mph) when the vehicle transmission is in PARK.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
EcoSport, F-650/F-750, F-Series Super Duty, Fusion, KA, Motorhome/Stripped Chassis/Step Van, Ranger	Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
Manual Transmission	Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
All others	The PCM uses information from the ABS control module and the TCM to calculate vehicle speed. Check these modules for DTCs.