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I have a John Deere LT155 that will not start. I turn the

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I have a John Deere...
I have a John Deere LT155 that will not start. I turn the key and the only thing that happens is that the lights come on. The battery measures 13.5 volts, I by passed the solenoid and the starter engages, I shorted the solenoid and it started, so I replaced the solenoid. Still no luck. I could not find a fuse, so when I went to the John Deere dealer ship to get the solenoid, I ask where the fuse would be located. I checked and said that there wasn't one.
Submitted: 1 year ago.Category: Small Engine
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4/11/2016
Technician: Donald, Small Engine Technician replied 1 year ago
Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,232
Experience: I have 25+ years of experience repairing 2 & 4 cycle engines
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Hello David. My name is***** will be happy to assist you. Your mower does have a fuse, but I feel that it is okay, due to your lights coming on. I am assuming you have a way to test for voltage.
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Customer reply replied 1 year ago
Yes, Where would the fuse be.
Customer reply replied 1 year ago
are you there?
Technician: Donald, Small Engine Technician replied 1 year ago
Yes I am here.
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Technician: Donald, Small Engine Technician replied 1 year ago
I believe your fuse is okay, or your lights would not come on.
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Customer reply replied 1 year ago
That's what I thought, but would like to know here it is located for future use.
Technician: Donald, Small Engine Technician replied 1 year ago
No problem. It is located near your battery. It is in-line on a small red wire that either attaches to your battery, or your solenoid.
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Technician: Donald, Small Engine Technician replied 1 year ago
That small red wire, powers your ignition switch.
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Customer reply replied 1 year ago
ok thanks
Technician: Donald, Small Engine Technician replied 1 year ago
Our problem likely lies somewhere along your start circuit.
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Technician: Donald, Small Engine Technician replied 1 year ago
You are very welcome!
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Customer reply replied 1 year ago
Ok, how do we find the problem.
Technician: Donald, Small Engine Technician replied 1 year ago
Your solenoid have two large red cables attached to it. How many small wires are attached to it??
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Customer reply replied 1 year ago
2
Technician: Donald, Small Engine Technician replied 1 year ago
Is one of the wires purple?
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Customer reply replied 1 year ago
yes
Customer reply replied 1 year ago
there other one is blue
Technician: Donald, Small Engine Technician replied 1 year ago
Great! Remove the purple wire from your solenoid. Turn your ignition switch to on position. Check to see if you have voltage in this wire.
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Customer reply replied 1 year ago
no voltage
Technician: Donald, Small Engine Technician replied 1 year ago
Ok, let's check the blue one for voltage.
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Technician: Donald, Small Engine Technician replied 1 year ago
I apologize, check the purple wire for voltage, with your key in start position, with your parking brake on, and your pto off.
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Customer reply replied 1 year ago
There were actually three wires. The blue one is connected to the the post on the solenoid that is connect to the battery and it has voltage to it. the other wire is black and is connected to one od the small terminals and it does not have any voltage.
Technician: Donald, Small Engine Technician replied 1 year ago
The other wire should have continuity.
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Technician: Donald, Small Engine Technician replied 1 year ago
I am referring to the black wire.
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Technician: Donald, Small Engine Technician replied 1 year ago
Black = Continuity
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Technician: Donald, Small Engine Technician replied 1 year ago
Purple = Voltage In Start Position
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Customer reply replied 1 year ago
The parking brake did not change anything, but when it push in the clutch, or what ever it is called, i get about 1/2 volt
Customer reply replied 1 year ago
continuity with what
Technician: Donald, Small Engine Technician replied 1 year ago
Thank you for checking. That should read above 12 volts. Let's try something else. Remove the connector from your ignition switch. Check your voltage reading on your red wire.
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Customer reply replied 1 year ago
what is the pto. missed that originally
Technician: Donald, Small Engine Technician replied 1 year ago
PTO is for engaging your blades ...
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Technician: Donald, Small Engine Technician replied 1 year ago
You may have either a lever, or a push/pull button to engage your blades.
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Customer reply replied 1 year ago
are you waiting on me for anything?
Technician: Donald, Small Engine Technician replied 1 year ago
Yes, I am waiting while you check the voltage reading on the red wire in your ignition switch connector.
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Customer reply replied 1 year ago
Need to tell me those things. I get 1 volt
Technician: Donald, Small Engine Technician replied 1 year ago
No problem. Thank you for checking.
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Technician: Donald, Small Engine Technician replied 1 year ago
The red wire should have voltage that is equal to your battery voltage.
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Technician: Donald, Small Engine Technician replied 1 year ago
I found a wiring schematic for your mower. I discovered that you have a Fuseable Link, in-line on your red wire. It could be bad.
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Technician: Donald, Small Engine Technician replied 1 year ago
This could explains why you are not getting 12 volts at your ignition switch ( red wire ).
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Customer reply replied 1 year ago
The volt meter goes to 1, like it is meassuring continuity
Technician: Donald, Small Engine Technician replied 1 year ago
I believe your Fuseable Link is at fault.
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Customer reply replied 1 year ago
would it be between the battery and the switch?
Technician: Donald, Small Engine Technician replied 1 year ago
It is on a red wire between your solenoid and your ignition switch.
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Technician: Donald, Small Engine Technician replied 1 year ago
Have you double checked for loose connections?
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Customer reply replied 1 year ago
Ok need to remove battery
Technician: Donald, Small Engine Technician replied 1 year ago
One end of the small red wire bolts to your solenoid post, and the other end goes directly to your ignition switch.
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Technician: Donald, Small Engine Technician replied 1 year ago
This is why this wire should always have voltage equal to your battery voltage.
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Customer reply replied 1 year ago
i do not see a fuse on this wire
Technician: Donald, Small Engine Technician replied 1 year ago
There is not a fuse on your wire. There is a fuseable link instead.
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Technician: Donald, Small Engine Technician replied 1 year ago
It has two small red wires coming from one end of it.
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Customer reply replied 1 year ago
the red wire connects to the blue wire and another read wire. i show continuity between the solenoid wire and the switch. This would not be the case if there was a blown fuse in this section.
Technician: Donald, Small Engine Technician replied 1 year ago
Did you check continuity by probing your wire where it attaches to your solenoid, and where your wire enters your ignition switch connector?
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Customer reply replied 1 year ago
I am sorry, lost my internet connection. How do I fix the fuseable link?
Technician: Donald, Small Engine Technician replied 1 year ago
No problem. You can go to your local John Deere dealer to get a replacement.
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Technician: Donald, Small Engine Technician replied 1 year ago
You can splice in the new one.
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Customer reply replied 1 year ago
I checked the continuity between the end of the blue wire that connects to the solenoid and the switch and it shows good. Is there anything else that could be wrong?
Customer reply replied 1 year ago
Also, would not the switch be operationally in order for my to start the engine by shorting the solenoid?
Technician: Donald, Small Engine Technician replied 1 year ago
Your switch does not play a role in that procedure. The only other thing I can think of is a loose or dirty connection. How many volts are you getting on your blue wire, if you prove it where it attaches to your solenoid.
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Technician: Donald, Small Engine Technician replied 1 year ago
One large post on your solenoid should have voltage at all time. Is your blue wire attached to this post?
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Customer reply replied 1 year ago
Yes. Checked continuity from solenoid. Is the fuseable link where the two read and one blue wire comes together? It just looks like a splice. Or is it some place else. It just looks like a splice.
Technician: Donald, Small Engine Technician replied 1 year ago
That's it. It will look like a splice.
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Customer reply replied 1 year ago
Yes, it was connected to the hot lead on the solenoid
Customer reply replied 1 year ago
Well, I am going to had to go to work now, so won't be able to get link until tomorrow to see if that works. thanks
Technician: Donald, Small Engine Technician replied 1 year ago
You are very welcome! We can continue tomorrow.
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Technician: Donald, Small Engine Technician replied 1 year ago
This is a follow for you for tomorrow. Double check your fuseable link, just to make sure it is at fault, before replacing it. To correctly check it for continuity, your must remove your Blue wire from your solenoid post, due to that post having voltage from your battery at all times. Your Blue wire, must be e-attached to the hot side of your solenoid, after you are finished testing your Fuseable Link.
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Technician: Donald, Small Engine Technician replied 1 year ago
Keep in mind that if your fuseable link is ok, and you are getting 12 plus volts at your solenoid (Blue wire), you must get 12 volts at the Red wire on your ignition switch. The readings have to match. If not, then our problem lies somewhere along that wire.
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Customer reply replied 1 year ago
Donald, I have replaced the fusible link and also had the battery tested. The battery had a bad cell, even though it was showing over 12 volts, so replaced it also. I have 12.87 volts at the ignition switch, but still nothing when I try to start. Also, replaced the ignition switch and by passed the seat switch. Still nothing.
Technician: Donald, Small Engine Technician replied 1 year ago
Hello David. Thank you for the update. Remove the jumper wire from your seat switch, and re-attach your connector. Now that you have a tester, check for voltage on the Purple Wire that attaches to your solenoid. During this test, make sure you have brake down and locked, and someone needs to be on your seat.
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Customer reply replied 1 year ago
With the seat switch is connected and the brake depressed, the voltage on the purple wire, which is now gray, is 12.87 volts. Also checked the voltage at the ignition switch and it was also 12.87 volts.
Technician: Donald, Small Engine Technician replied 1 year ago
Did you change the purple, to a gray wire?
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