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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P1501: - Vehicle Speed Sensor (VSS) Out Of Self-Test Range

DTC P1501: - Vehicle Speed Sensor (VSS) Out Of Self-Test Range

DTC P1501: - VEHICLE SPEED SENSOR (VSS) OUT OF SELF-TEST RANGE

Description:  Indicates the 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 
F-Super Duty GO to Pinpoint Test DF . GO to Pinpoint Test DF . -
Expedition,
Flex,
MKS,
Navigator,
Sable,
Taurus,
Taurus X		 The powertrain control module (PCM) uses information from the anti-lock brake system (ABS) module and the transmission control module (TCM) to calculate vehicle speed.
Check these modules for DTCs.
All others GO to Pinpoint Test DP . GO to Pinpoint Test DP . -
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