Troubleshooting why I dont have power to PTO clutch on John Deere L120. K1 RIO latch Relay is humming, buzzing? Whats going on?

Check the resistance of the PTO clutch winding with the PTO power cable disconnected. It should read 2 - 4 ohms.

The engine does not need to be running for PTO to engage but all safeties must be operational.

I believe the red led ON indicates the PTO clutch relay is (should be) energized. So if the red led is off then the PTO relay is not energized hence no power to the clutch. Check all fuses. You need to test your way back from the PTO switch to the PTO relay, through the safeties.

Just out of curiosity check your pigtail that plugs into the pot harness. I have ran into a broken wire inside that pigtail before.

seat switch and selector switch are in that circuit also

CHECK TO SEE IF YOU HAVE VOLTAGE AT PTO IF DO YOU HAVE BAD NEW CLUTCH AND THEY MAKE BAD ONES IF NO POWER AT CLUTCH THEN GO TO SWITCH CHECK FOR POWER AT SWITCH IF NO POWER CHECK FUSE BEHIND DASH THING ONE COULD HAVE RELAY ON IT SO CHECK FOR RELAY SMALL BOX WIYH FOUR WIRE IN IT CHECK IT FOR POWER ACROSS RELAY IF NOT REPLACE IF YES REPLACE PTO SWITCH

Most of these mowers have a safety switch between the PTO switch and clutch. A safety switch or relay is most likely the problem. Hope this will help ya.

These John Deere Garden Tractors have a RIO (Reverse Implement Option) on the PTO. If your PTO is engaged and you back up, the PTO will automatically stop. To reset it, depress your PTO engagement switch to the OFF position. Take your foot off the reverse pedal. Pull up on the PTO engagement switch. The PTO should restart. To use the RIO feature, pull up on the PTO switch for a second or two just before you step on the reverse hydrostatic pedal. The yellow RIO indicator light should come on your dashboard and you can now back up with the PTO still running. Works great for snow blowing when I don't want to keep resetting my electric PTO clutch to keep restarting my snow blower.

If your PTO will not restart, you may have a PTO switch starting to fail, or a likely logic problem in your electric PTO control module, or one of your forward/reverse indicator switches, which is linked to your PTO control module along with the overtemp circuit, is stuck/faulty.

check the fuse if ok check the safety switches

Try a new seat switch,or the rio switch on the right rear of the trans-axle.

sounds like the seat switch is bad

have a john deere zero turn that will not turn all the way over