Vehicle Speed Sensor Function Check
For analog display dash only. Turn ignition off. Remove instrument cluster. See VEHICLE SPEED SENSOR under REMOVAL & INSTALLATION. Disconnect speedometer cable from instrument cluster. Connect ohmmeter between Green/Red wire and Black wire of instrument cluster connector. Rotate speedometer cable connector on instrument cluster. If there are 4 continuity interruptions per speedometer cable rotation, proceed to PINPOINT TEST D5 . If there are NOT 4 continuity interruptions, replace speedometer subassembly.
NOTE:
The vehicle speed sensor is part of the speedometer subassembly on vehicles with analog display dash. The speedometer subassembly must be replaced when vehicle speed sensor is defective.