Diagnostic Aids

Ensure speedometer is functioning properly before performing this test. If speedometer does not function properly, repair speedometer as necessary. See ANALOG INSTRUMENT PANELS - VILLAGER article in ACCESSORIES & EQUIPMENT. Perform this test when directed by QUICK TEST. This test is intended to diagnose the following:

• Vehicle Speed Sensor (VSS).
• Harness circuit; VSS.
• PCM.

For DTC P0500, connect scan tool to Data Link Connector (DLC). Drive vehicle. Using scan tool, access VSS PID from PID/DATA MONITOR & RECORD menu. Ensure VSS PID reading agrees with speedometer.

Fig 1: Identifying Vehicle Speed Sensor Harness Connector Terminals

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Analog Instrument Cluster Harness Connector C266a Terminals

Courtesy of FORD MOTOR CO.

Fig 3: Identifying Analog Instrument Cluster Harness Connector C266b Terminals

Courtesy of FORD MOTOR CO.

Fig 4: Identifying Electronic Instrument Cluster Harness Connector C267a Terminals

Courtesy of FORD MOTOR CO.