Toro 74946 Software Manual Download Page 15

Troubleshooting

System Error Message

Status LED

System Actions

Issue Description

Recommended Corrective Action

Service the Engine Oil

Blink Red

Engine oil service is
due.

Replace the engine oil and filter.
Follow the reset procedure; refer to

Engine Oil (page 10)

.

Service the
Transmission Oil

Blink Red

Transmission oil
service is due.

Replace the transmission oil and
filter(s). Follow the reset procedure;
refer to

Hydraulic Trans Oil (page 10)

.

Low Oil Pressure

Blink Red

Safe Transport
Mode—engine limited
to Efficient mode and the
PTO is disengaged.

Engine oil pressure is
below limit.

Cycle the key switch to clear the
fault. Check the oil level. Contact an
Authorized Service Dealer.

Green

Single alarm chirp and
temperature display
flashes.

Engine temperature is
high.

Check the oil level. Clean debris from
the engine. Inspect the engine fan.
Contact an Authorized Service Dealer.

Engine Over
Temperature

Blink Red

Safe Transport
Mode—engine limited
to Efficient mode and the
PTO is disengaged.

Engine temperature
above limit.

Check the oil level. Clean debris from
the engine. Inspect the engine fan.
Contact an Authorized Service Dealer.

Fuel Low

Blink Red

Fuel level low.

Check the fuel level and add fuel as
necessary.

System Overvoltage
>16VDC

Blink Red

Disallow clutch
engagement/ Disengage
the clutch.

System voltage
excessive/ above
16 V.

Check the battery and engine
charging system. Contact an
Authorized Service Dealer.

System Voltage Low

Blink Red

System voltage below
12.3 V.

Check the battery and engine
charging system. Contact an
Authorized Service Dealer.

System Under
voltage<9VDC

Blink Red

Disallow clutch
engagement/ Disengage
clutch.

System voltage below
lower limit of 9 V.

Check the battery and engine
charging system. Contact an
Authorized Service Dealer.

Clutch Overcurrent

Blink Red

Safe Transport
Mode—engine limited
to Efficient mode and the
PTO is disengaged.

Clutch current is
above limit.

Cycle the key switch to clear the
fault. Check the PTO clutch condition
and the related wiring. Contact an
Authorized Service Dealer.

Clutch Reset Required

Alternating
green/orange

The PTO switch is
in the up/ engaged
position and the
module has latched
the clutch output Off.

Cycle the PTO switch to the O

FF

position and back to the O

N

position

to engage the clutch.

Clutch Output Fault

Blink Red

Clutch output short or
open.

If the clutch is stuck in the O

N

position,

discontinue use and contact an
Authorized Service Dealer. Check
the clutch connection and associated
wiring for an open circuit.

Engine MIL Errors

Blink Red

Engine ECU has
detected a fault.

See the engine owner’s manual for the
error description and troubleshooting
information.

15

 

Summary of Contents for 74946

Page 1: ...or more information WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer birth defects or reproductive harm Screen I...

Page 2: ...ter Return Neutral Lock Located in top row of Information Screen Decrease Previous OPC Operator Presence Control Increase Next Maximum Engine Speed Play Start Reset Efficient Engine Speed Pause Stop E...

Page 3: ...and Orange indicates that a clutch reset is required Buttons The multi functional buttons are located at the bottom of the panel The icons displayed on the information screen above the buttons indica...

Page 4: ...position i e PTO disengaged parking brake engaged motion control levers in the NEUTRAL LOCK position and the operator is present The PTO must be disengaged brake engaged and motion control levers out...

Page 5: ...anced Settings Menu page 10 g038651 Figure 6 1 Maintenance and Service 4 Cancel Exit 2 Gauges and Meters 5 Toggle between screens 3 Advanced Settings 6 Enter Return Maintenance and Service Menu You ca...

Page 6: ...if LDU and MCU are communicating Alarm highlights if On Starter highlights if On Current Error Messages This screen displays the current error as text with the engine hours at which the error occurred...

Page 7: ...14 1 Deck Gear Box Oil 2 Reminder display 3 Engine hours remaining until the service is due Machine Information The screen displays the serial number and model number of the machine g030190 Figure 15...

Page 8: ...ss the Reset button to confirm the reset press Y yes or N no to cancel Figure 20 g030203 Figure 20 1 Reset 3 Y yes 2 Are you sure 4 N no PTO Hours This screen displays a non resettable total PTO hour...

Page 9: ...Trip Statistics 1 is paused the statistics are highlighted and the reset button is available Pressing the reset button resets all 3 parameters Pressing the play button starts data collection g038364...

Page 10: ...ce 2 Reminder display 4 Reset Pressing the reset button brings up a screen asking to confirm the reset reminder Hydraulic Trans Oil After performing the necessary maintenance this screen allows you to...

Page 11: ...age 16VDC System Undervoltage 9VDC System Voltage Low Engine Settings This screen allows you to adjust the engine speed at the Maximum Efficient and Low set points for both transport clutch disengaged...

Page 12: ...ing the system returns the engine speed settings and alarm settings back to the factory default settings g030238 Figure 38 1 Factory Defaults 2 Reset When the exit screen appears press the enter butto...

Page 13: ...rrent The cutting clutch current is too high Clutch Reset Required The PTO switch must be turned off and to activate the PTO Engine Error Codes The system displays engine error codes provided by the e...

Page 14: ...aged before the error occurred the system allows the clutch to remain engaged however low voltage may cause the clutch to disengage itself 4 Low Oil Pressure If low engine oil pressure is detected the...

Page 15: ...ervoltage 16VDC Blink Red Disallow clutch engagement Disengage the clutch System voltage excessive above 16 V Check the battery and engine charging system Contact an Authorized Service Dealer System V...

Page 16: ...cal connections at the module interconnect between the engine wire harness and chassis harness Check the connections at the engine ECU Contact an Authorized Service Dealer Module Communication Error B...

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