s diagnostic data port. This port is found underneath the dashboard on the driver&rsquo

How Do I Know If the Crank Sensor Is Poor on a '97 Toyota Corolla?

1Stop the vehicle on a flat surface and shift the transmission into park or first gear for a manual transmission. Turn off the engine and apply the parking brake.

2Connect the scan tool’s data cable to the vehicle’s diagnostic data port. This port is found underneath the dashboard on the driver’s side, directly above the pedal area. Turn the ignition to the "On" position but do not start the engine.3Power on the scan tool and choose “Live Data” from the main menu. The scan tool displays the live data feed from all of the sensors in the vehicle.

4Use the arrow keys on the scan tool to scroll down until you see the “Engine RPM” data parameter.5Crank the engine and watch the "Engine RPM" readout on the scan tool. When the scan tool displays the cranking RPM Auto diagnostic tools, the crankshaft sensor is operating properly. In the event the scan tool shows a zero, or displays no RPM value Auto diagnostic tool, then the crankshaft sensor is faulty and must be replaced.

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