Owner's manual

SEEDHAWK
®AIRCARTOPERATOR’SMANUAL65
7.4.6 TROUBLESHOOTING
1.MUXSensorisnotrecognizedatpowerup.Thiswillincludethegroundspeed,fan,andbin
levelsensors

Possible causes:  Harness wiring is faulty or the sensor is
defective.
Solution: Withthe system turnedon, go thesensorthatisnot
communicating. There is a LED on each sensor (except the
multilevel bin sensor). If it is flashing slowly (1 flash every 2‐3
seconds) that indicates that power and ground are connected
but the sen sor wire is not. The power wire is +12 volt s and is
the white wire. It is in the “A” position on  the connector. The
Ground wire is black and is in the “B” position on the
connector. The sen sor wire is the green wire and is in the “C”
positionontheconnector.IftheLEDisnotflashing,unplugthe
sensor from the harness and plug it back in. If the LED lights
momentarily, power is present and the sensor is faulty. If the
LED does not light at all check power at the connector. You
should measure 12 volts between the white and black wire. If
youdo,thesensorisfaulty,ifyoudon’ttheharnessisfaulty.All
thewhite wires on theMUXharnessare connected in parallel,
alltheblackwiresareinparallel,andallthegreenwiresarein
parallel.Youcanmeasurecontinuitybe‐tweenany ofthe“A”,
“B”,or“C”connectionsontheMUXharness.