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1. After connecting Diagnostic ACE and turning key switch ON, move
any input switch, such as the Enable/Disable switch, to get the
Diagnostic ACE display to function. DO NOT start the engine.
CAUTION: To prevent possible personal injury, lower
cutting units before working on machine. If ignition key
switch is on, cutting units will lower when joystick is moved to
lower/mow position.
NOTE: After doing step 1, the “
INPUTS DISPLAYED” LED will be on.
This indicates that the ECU and Diagnostic ACE are operating
properly. If the green Controller Diagnostic Lamp on the machine
comes on, but the “INPUTS DISPLAYED” LED does not come on, there
is a problem with the Diagnostic ACE.
2. If necessary, push input-output toggle button so “INPUTS
DISPLAYED
” LED is on. Do not hold the button down.
NOTE: Red text on overlay decal refers to input switches and green
text to outputs.
3. The Diagnostic ACE will illuminate the LED associated with each
input when that input switch is closed. Check each switch (input) by
opening and closing the switch, then verifying that the corresponding
LED goes on and off as the switch position is changed. For example,
with traction pedal in neutral, “TR. NEUTRAL” LED should be on, then
go off, when traction pedal is moved out of neutral. Check function
for each switch that can be changed manually.
4. If a switch is closed and corresponding LED does not go on, check
all wiring and connections to switch and/or test switch with a
continuity tester or ohm-meter. Replace any faulty switches and
repair or replace any faulty wiring or connectors.
Checking INPUTS
Push INPUT-OUTPUT TOGGLE
so INPUTS DISPLAYED light is ON.
Using the Diagnostic ACE (RM 5100-D/5300-D) Page 3