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Home >> Ford >> 2021 >> Expedition XL, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Memory Modules >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P1502 - Vehicle Speed Sensor Intermittent

P1502 - Vehicle Speed Sensor Intermittent

DTC DESCRIPTION P1502 - VEHICLE SPEED SENSOR INTERMITTENT

Description:  This DTC sets when there is a concern with the vehicle speed data. Vehicle speed data is received from either the VSS or anti-lock brake system (ABS) control module. This DTC sets the same way as P0500. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error.
Possible Causes: 
  • Noisy VSS input signal from the radio frequency interference/electromagnetic interference (RFI/EMI) external sources, such as ignition wires, the charging circuit or after market 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 
Automatic Transmission GO to Pinpoint Test DF.
Manual Transmission GO to Pinpoint Test DP.