5045E Wiring/Diagnostic Guide

[Jeffrey Bandel]

I have a 2013 5045E that won't crank. I am trying to diagnose the problem. I have TM901619 29April15. I don't think it is right for my tractor. Can anyone help?

 

[Fuddyduddy1952]

I would start basic troubleshooting with a good multimeter. Battery voltage? Now try cranking...voltage? If it drops a lot, replace battery, if no change check fuses & connections.

 

[Tx Jim]

Welcome to this forum.
Have you cleaned/tightened ALL FOUR(4) battery cable connections? What is battery voltage before & during attempted start of engine? Have you checked for a blown fuse?

 

[Jeffrey Bandel]

Yes. I have done all the simple basic things. I need an actual wiring diagram. Could be a bad key switch, relay, wire, ect...

 

[Tx Jim]

How many volts did battery show when you tested it? With """trans in neutral""" have you attempted to short across large terminal & "S" terminal on starter solenoid to determine if starter gear will engage flywheel ring gear?

 

[Jeffrey Bandel]

Plenty of voltage on load tested battery. The starter will not engage by doing that. I also am not getting any voltage to the "S" terminal.

 

[Tx Jim]

If starter won't engage by shorting across "S" terminal & top post on starter solenoid you have a poor battery connection, faulty battery cable or faulty starter/solenoid.

 

[Jeffrey Bandel]

I agree the starter is probably bad. Not getting power to the solenoid is another issue.

 

[Jeffrey Bandel]

I checked my starter relay. It is getting voltage to it, but not out of it.

 

[Tx Jim]

I checked my starter relay. It is getting voltage to it, but not out of it.

Is starter relay receiving good ground connection when activated?

 

[Jeffrey Bandel]

I don't know. I am heading out to the farm to run continuity tests on it. I'll check ground as well.

 

[Jeffrey Bandel]

The relay tests out good and ground is good. Since I am getting voltage to the big post and the relay is not working, I am not getting voltage to the small wires to activate it. The wiring diagram in the manual is poor so I need to visually check where the small wires go.

 

[workinonit]

I'm assuming by "big post" you are referring to the contact on the relay/contactor. I'm also assuming by "small wires" you are referring to the coil for the relay/contactor? Depending on how complex the electronics are on your unit will determine how complex that "small wire" or starting circuit is. That circuit will be initiated by the key switch.

 

[Jeffrey Bandel]

Correct. The small wires go into a Deutch connector and then into the relay. If I disconnect the Deutch connector and put the ignition in run, I get 11 volts into that small wire. When I plug the connector back in, I don't' get voltage and the relay makes noise.

 

[workinonit]

Sounds like you have a loose connection somewhere that is causing the coil to drag the voltage down. Or maybe a ground in the circuit. Have you checked for grounds. That's the first thing you should have done.

 

[Jeffrey Bandel]

I did. I'm pretty sure the starter is bad. Maybe it is causing it.

 

[workinonit]

Disconnect the starter and see if the relay works as it should.

 

[Jeffrey Bandel]

That's my next step when I get to the farm.

 

[Jeffrey Bandel]

When the starter is disconnected I get voltage to the S (small wire on the starter solenoid). The odd thing is I get that voltage in the start and run positions. I thought you only want it in the start position.

 

[Fuddyduddy1952]

It's easy to supply power to small S solenoid terminal by jumping it to large terminal which goes to battery +. If it engages and cranks then solenoid and starter are OK. If not then replace it.