Troubleshooting
50940411/G0219 172 Printed in U.S.A.
Miscellaneous Troubleshooting
Error Codes
The tables in this section describe error codes which may be reported on the multi-function display screen.
More than one error can be reported at one time, and each error code will display on a separate screen.
Multiple errors will be reported on a summary screen. See “Multi-Function Display” on page 48.
NOTE:
Error codes remain displayed after the error is corrected. Press the display several times to rotate
through all display screens to refresh the display; corrected error codes will not reappear in the screen
rotation.
Controller Communication Error Codes
NOTE: See “Control Modules” on page 158 for controller locations.
Engine Error Codes
Models RT175/RT210 Yanmar Engine Diagnostic Trouble Codes (DTC)
Table 53: Miscellaneous Troubleshooting
Problem Possible Cause Corrective Action
Non-functional cab heater
Thermostat oriented in housing with
support bales/arms blocking feed hole to
heater hose. (SOME heat delivered
through heater)
Replace thermostat; align bales/arms
properly (parallel to engine crankshaft) in
housing.
Table 54: Controller Communication Error Codes
Error Code Error Description
1-2 No Communication between engine control module to display
1-3 No Communication between drive / lift arm / standard aux. flow control module to display
1-4 No Communication between display to main / drive control module
1-5 No Communication between multi-function control module to display
27 No CAN communication engine control module to main / drive control module
28 No CAN Communication main / drive control module to display
29 No CAN Communication drive / lift arm / standard aux. flow control module to main / drive control module
Table 55: Yanmar Engine Diagnostic Trouble Codes (DTC)
DTC Error Item
SPN FMI P-Code Part State
28 0 P1126 Acceleration Sensor 3 Sensor failure (throttle in open position)
28 1 P1125 Acceleration Sensor 3 Sensor failure (throttle in closed position)
28 2 P0224 Acceleration Sensor 3 Intermittent fault
28 3 P0223 Acceleration Sensor 2 Acceleration sensor 2 fault (high voltage)
28 4 P0222 Acceleration Sensor 2 Acceleration sensor 2 fault (low voltage)
29 0 P1226 Travel Pedal Position Sensor "B" Above normal operation range
29 1 P1225 Travel Pedal Position Sensor "B" Below normal operation range