john deer Gator - Troubleshooting Common Issues; Display Module Error Codes

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LP69910 (12/07/2020) 3 CU FT GATOR FERTILIZER SPREADER
Troubleshooting
The Display Module and Control Module work as a system and communicate with each other over the CAN bus. Both
modules should be powered up at the same time for proper functionality.
Symptom Troubleshooting Guide
Control Module and/or Display Module does not turn on
Control Module status light is off
Display Module screen is off and/or status LED is off
1. Ensure connections are fully seated.
2. Remove front wire harness. Check for 12v at pins A-J at
rear connection attachment point.
3. If no voltage, vehicle has insufcient power or ground
connection.
• If 12V, check for 12v at pins at pins 2-3 on display
side of connector.
• If no voltage, replace wire harness.
• If 12v, display is faulty. Replace display.
No Communications
Check for 12V at Control Module pins M1-M4, if no voltage
check:
• Fuse on Gator Harness
• Chassis harness connection
• Spreader harness connection.
No Communications
No CAN communication between Control Module and
Display Module
• Display harness connection.
• Spreader harness connection.
• Check continuity from Control Module pin A2 to
spreader harness pin 4
• Check continuity from Control Module pin C2 to
spreader harness pin 5
Material is not owing with the gate open
• Check that the gate stop is in the correct position
according to the calibration procedure and adjust if
necessary
• Material that has gotten damp may clump and will
not ow as well as dry material. Always operate the
spreader with the lid installed
Display Module Error Codes
SPN Error Description Troubleshooting Guide
110 0
High Temperature
Fault
Internal
temperature above
75C
The module will stop operating the spreader if the internal
temperature rises above 75C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to high temperatures to
allow its internal temperature to fall below 75C. The module must be
power cycled to recover from a high temperature fault.
1101
High Temperature
Warning
Internal
temperature above
65C
No action is necessary. The module will continue operating the
spreader with an internal temperature between 65C and 75C but
will stop operating the spreader if the internal temperature rises
above 75C.
1102
Low Temperature
Fault
Internal
temperature below
-30C
The module will stop operating the spreader if the internal
temperature falls below -30C. This is a latching fault to protect the
electronics. Reduce the module’s exposure to low temperatures to
allow its internal temperature to rise above -30C. The module must
be power cycled to recover from a low temperature fault.