P0380 & P0606 codes

[Sberti]

I know codes are for glow plug abnormality and ECU abnormality. I’m suspecting issue with glow plug circuit. Here’s what happened…

turned ignition to on to warm plugs, they lit for abnormally short period of time. Tried to crank. Tractor turned over two times then stopped and threw the codes along with engine warning light. I’ve checked all fuses and slow blow fuses.

I am highly doubting an existing short in the circuit. Is there a way to reset the codes and try again? Will load test battery as next step, but it’s only a year old. Can’t find a relay at a glance.
Anyone have experience with this before I start ripping and tearing things apart? Hoping it didn’t short out the ECU

 

[whitetiger]

turned ignition to on to warm plugs,

To start with, your tractor does not have glow plugs; it has a grid heater in the intake manifold.
The Glow Relay for the heater is under the dash cover, behind the instrument panel on the LH side.

 

[Sberti]

Did not know that. I’ll start there and see what I can find. Thanks

 

[Sberti]

Update: got back in the shop today. I had disconnected battery for last couple days. Load and voltage test of battery were fine. Turned ignition on. Still had same codes, but no engine warning light this time. So I tried to crank it and it fired right up without issue. I found the procedure to clear the codes and they cleared. Started and stopped several more times without issue.