Error code 20, plus screen reads “Depress Clutch”

[Schmitty]

From the LXX40-3 WSM:
-Clutch is closed when depressed sufficiently far.
-Seat switch is closed when someone is in the seat.
-Seat tilt circuit is open when the seat is not tilted.
-PTO circuit is closed when the PTO switch is off.
-HST pedal sensor must be centered/neutral.
Starting requires only clutch (depressed.on), PTO (off), HST pedal sensor (in neutral), and OPC requirements.

I'd recommend getting a copy of the appropriate WSM. A good way to tell if you have the L3240-1 or L3240-3 is the PTO switch. The -1 has a lever, the -3 has this knob:

When I had multiple simultaneous issues with the clutch depress and PTO switch I took off the seat, seat pan, and dash cowling, then safely shorted the seat switch and hot-wired to the ECU to confirm there were issues with old wires and confirm the clutch bracket was bent. Those issues were addressed and the safeties were reenabled with better-than-factory wiring.

 

[BudGoat]

Do you have an L3240-1 or L3240-3 HST? Here is the ERROR-20 text from the LXX40-3 WSM:
View attachment 132007

And the wiring diagram:
View attachment 132008

The ERROR-20 communication issue is something I've not had to troubleshoot and is concerning. I have an LXX40-1 WSM, too, if needed. Can you jump all the way to the ECU, i.e. with the seat and seat pan out of the way?

Where is the ECU?

 

[BudGoat]

Do you have an L3240-1 or L3240-3 HST? Here is the ERROR-20 text from the LXX40-3 WSM:
View attachment 132007

And the wiring diagram:
View attachment 132008

The ERROR-20 communication issue is something I've not had to troubleshoot and is concerning. I have an LXX40-1 WSM, too, if needed. Can you jump all the way to the ECU, i.e. with the seat and seat pan out of the way?

I have an HST. Error 20 explaination reads out odd. Does the HST pedal need to be in neutral to start the engine?

 

[BudGoat]

W

From the LXX40-3 WSM:
-Clutch is closed when depressed sufficiently far.
-Seat switch is closed when someone is in the seat.
-Seat tilt circuit is open when the seat is not tilted.
-PTO circuit is closed when the PTO switch is off.
-HST pedal sensor must be centered/neutral.
Starting requires only clutch (depressed.on), PTO (off), HST pedal sensor (in neutral), and OPC requirements.

I'd recommend getting a copy of the appropriate WSM. A good way to tell if you have the L3240-1 or L3240-3 is the PTO switch. The -1 has a lever, the -3 has this knob:

View attachment 132072

When I had multiple simultaneous issues with the clutch depress and PTO switch I took off the seat, seat pan, and dash cowling, then safely shorted the seat switch and hot-wired to the ECU to confirm there were issues with old wires and confirm the clutch bracket was bent. Those issues were addressed and the safeties were reenabled with better-than-factory wiring.

What is “OPC”?