P1501 - Vehicle Speed Sensor Out Of Self-Test Range

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Ford RV Cutaway, 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.

P1501 - VEHICLE SPEED SENSOR OUT OF SELF-TEST RANGE

Description:	Indicates the vehicle speed sensor (VSS) input signal is out of self-test range. If the powertrain control module (PCM) detects a VSS input signal any time during the self-test, DTC P1501 is set and the test aborts.
Possible Causes:	Noise on the VSS input signal from the radio frequency interference/electro-magnetic interference (RFI/EMI) 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
All		For F-Super Duty, Go to Pinpoint Test DF. For E-Series, refer to appropriate AUTOMATIC TRANSAXLE/TRANSMISSION article.