Eagle KEE E15 - Checking Loom Voltages, for 3 Pin Sensors

E15h SPRAYER- Diagnostics Mode
9.4.1CHECKING LOOM VOLTAGES, FOR 3 PIN SENSORS
• This test should be carried out if the sensor (ground speed sensor,
flow meter sensors, ) that appears to be faulty has
been checked using the Diagnostic Test in Section 9.4., and no ‘pulse
count’, or no ‘period’ can be observed or the period is erratic.
• This test will check the sensor is receiving the correct voltages, from the
sprayer loom.
• To carry out this test a multimeter is required which can measure DC
voltage between 1 and 24 volts. A ruler to measure distance between
sensor and magnet.
• This test procedure can be carried out on ground speed sensors,
auxiliary shaft sensors, pump speed sensors and the fan speed sensor all
which have a 3 pin weather-pak connector, which connects the sensor to the
sprayer loom. Each connector has A, B and C marked on the connector. If the
A,B and C are covered by shrink-wrap, then use diagram below to determine
the A,B and C pins position
• Check the the distance between the magnet and sensor. The distance
should be 2 to3 millimeters. Rectify if distance is incorrect.
• If checking ground speed sensor check to make sure no magnets are
missing and they evenly spaced apart.
• Check for obvious signs of damage(breakage, corrosion etc) to the
sensor, plug and wiring. Rectify any damage.
• From the sensor trace back the wiring to the 3 pin weather-pak plug,
unplug the sensor plug from the sprayer loom plug.
• Switch Console POWER switch ON.
• The ‘Latch’ on the plug is what holds the 2 plugs together. With the
‘Latch’ facing down (as shown in diagram), the Pins starting from the left
are: C, B and A.
• Using multi-meter, the voltage between PIN C and PIN B should be 12 volts.
• Using multi-meter, the voltage between PIN A and PIN B should be 4-5 volts.
• If the voltages are correct as above then this would suggest a faulty sensor.
• If one or both voltages are incorrect then write down the actual voltages
and contact your local KEE Dealer.
‘LOOM’ 3PIN Weather-Pak Plug
LATCH
PINS
PIN A = SIGNAL
PIN B = (-ve) GND
PIN C = (+ve)
4-5 volts
12 volts
90
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