P1502 - Vehicle Speed Sensor (VSS) Intermittent - DTC Chart

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 Lincoln Navigator, 2015 Lincoln MKZ, 2015 Lincoln MKX, 2015 Lincoln MKT, and 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.

P1502 - VEHICLE SPEED SENSOR (VSS) INTERMITTENT - DTC CHART

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
F-650/F-750, F-Series Super Duty, Fiesta, Fusion, Motorhome/Stripped Chassis/Step Van	GO to Pinpoint Test DF .
Manual Transmission	GO to Pinpoint Test DP .
All others	The PCM uses information from the ABS module and the TCM to calculate vehicle speed. Check these modules for DTCs.