Sensor Resistance Test
Disconnect speed sensor connector. Using a DVOM, measure resistance between speed sensor connector terminals. On Miata, resistance should be 1000-1200 ohms. If resistance is not as specified, replace speed sensor.
Disconnect speed sensor connector. Using a DVOM, measure resistance between speed sensor connector terminals. On Miata, resistance should be 1000-1200 ohms. If resistance is not as specified, replace speed sensor.