Speed Sensors

Ensure ignition is off. Disconnect PCM harness connectors. See Figure . Using a DVOM, measure resistance between appropriate speed sensor terminal at PCM harness connectors. See WIRING DIAGRAMS  . Resistance for input/turbine speed sensor on Suzuki models should be 530-650 ohms at 68°F (20°C). For all other speed sensors and models, resistance should be 387-473 ohms at 68°F (20°C). Replace sensor as needed.