Symptom | Probable Cause | Corrective Action | Recommended Tools |
NO SPEED READING 600EA
Console Assembly
RPM Sensor
Defective ECB Control Board
•Remove monitor bolts. Move the swing arms until the magnet is in front of the sensor.
•Set meter for DC volts. Check voltage between pin 3 and pin 1 at console assembly with cable connected.
•Move swing arms. When magnet is over the pickup the voltage should be 0 VDC. When the magnet is not over the pickup, the voltage should be 5 VDC.
•Does the voltage alternate between 0 VDC and 5 VDC? If yes – replace console assembly.
•Turn power off, remove rear cover
•Disconnect the sensor connector. Set meter for resistance.
•Check resistance at the 2 pins of the connector. Slowly move the swing arms to rotate the wheel.
•Does the meter show continuity when the magnet is over the pickup? If no – replace the sensor.
•Perform a continuity and contact check on the console wire.
•Replace defective wire.
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