Error 73
- Thread starter MWILLMONT
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AKfish
Super Member
- Joined
- Oct 1, 2004
- Messages
- 5,419
- Location
- Alaska
- Tractor
- JD 5115M; JD 110 TLB; JD 4720; Ford 9N; JD X300R
Your owner's manual should have several pages near the back of the book that detail many of the possible error codes for your tractor.
If you can't find it (or don't have the manual) a quick call to your dealer and a minute on the phone with the service manager should give you the information you need.
AKfish
If you can't find it (or don't have the manual) a quick call to your dealer and a minute on the phone with the service manager should give you the information you need.
AKfish
kennyd
Advertiser
If you tell us what tractor you have we can point you to the online manual if you need it.
Cocre
Gold Member
I read some of your old posts and think you have a 3520. For that model the error 73 is;
Description - Starter relay off
Cause of fault - Output from the display is open
Result of fault - Cannot crank the engine
Required action -Check the start relay. Check the 518 Gry wire for short to battery voltage or open circuit.
First thing I would try is to take the Deere battery out of the tractor, walk with it about 20 feet away and set it down, get you a known good battery, put it in the spot you took out the old one, and crank the tractor up.
You walk the battery away from the tractor so that you will not be tempted to just boost off another battery with the old one still in the starting circut.
The OEM batteries in many of the 3x20s seem to cause all types of electrical oddities after a couple of years. I know by experience.
Description - Starter relay off
Cause of fault - Output from the display is open
Result of fault - Cannot crank the engine
Required action -Check the start relay. Check the 518 Gry wire for short to battery voltage or open circuit.
First thing I would try is to take the Deere battery out of the tractor, walk with it about 20 feet away and set it down, get you a known good battery, put it in the spot you took out the old one, and crank the tractor up.
You walk the battery away from the tractor so that you will not be tempted to just boost off another battery with the old one still in the starting circut.
The OEM batteries in many of the 3x20s seem to cause all types of electrical oddities after a couple of years. I know by experience.
Cocre
Gold Member
The 3x20 technical manual goes in to good detail on how to diagnose the cause of your error. I highly recommend that you buy the PDF version.
Could be a short in the 518 Gry wire.
Could be a bad starting motor or solenoid.
Could be 309 wht wire or 010f, e, or d Blk
Could be the key switch.
Could be a lot of other things, even the display panel, anything in the cranking circuit.
Could be a short in the 518 Gry wire.
Could be a bad starting motor or solenoid.
Could be 309 wht wire or 010f, e, or d Blk
Could be the key switch.
Could be a lot of other things, even the display panel, anything in the cranking circuit.