Honda HRM300 Manual page 121

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TROUBLESHOOTING
"Tilt sensor" MESSAGE
Tilt the mower and then check whether tilt
sensor detects it and warning screen is
displayed.
Not displayed
Angle direction does not changed in the tilt
sensor test of the test mode (page 3-38).
Not changed
Calibrate the tilt sensor (page 3-43).
Fault reset
Temporary failure.
"Lift sensor" MESSAGE
Lift the main cover, and then check whether
both lift sensors detect it and warning screen is
displayed.
Not displayed
Test both sensors using Dr.H or test mode
(page 3-37).
Not react
Replace the lift sensor(s) with a new one(s)
(page 10-5) and check the lift sensor plates
installation (page 7-5), and then recheck the
fault message in the display.
Abnormal
Main ECU trouble.
Replace the main ECU (page 10-7).
6-16
Displayed
Temporary failure.
Changed
Main ECU trouble.
Replace the main ECU (page 10-7).
Fault does not reset
Main ECU trouble.
Replace the main ECU (page 10-7).
Displayed
Temporary failure.
React
Check the lift sensor/lift sensor plate
installation (page 10-5, 7-5).
Normal
Faulty original lift sensor(s) or poor installation
of lift sensor plate(s).