Vehicle Speed Sensor/Transducer - Cruise Control: Testing and Inspection

1. Disconnect electrical connector from speed sensor, refer to SCHEMATIC DIAGRAMS/ELECTRICAL AND ELECTRONIC DIAGRAMS then connect an ohmmeter between the speed sensor terminals at speed sensor end.
2. a. On 1989 Escort models, a reading of approximately 30-100 ohms should be obtained.
b. On 1989 models except Escort, a reading of approximately 200-300 ohms should be obtained.
c. On all 1990-91 models, a reading of 200 ohms should be obtained.
d. On all models, a reading of 0 ohms indicates a shorted coil and maximum reading indicates an open coil.
3. Replace the sensor if a correct reading has not been obtained.