QuestionQUESTION: I had to install a new wiring harness, regulator, and key switch because
something caused the wiring to burn up on my 2001 JD LT155 (serial #
M0L155H125416). Before I power things up I have been checking various
circuits with an ohm meter and noticed that the white wire that leads to the
module (part # M133019) that provides electricity to the spark plug is on
ground. This module is next to the stator and has this white wire leading to it
and another wire that goes to the spark plug. I can disconnect the white wire
and the short is not on the module inself but somewhere else in the wiring
system. It seems to be on ground no matter what position the key is in. I
just wanted to see if this was normal before I connect the battery and fry
something.
ANSWER: Hello Dave:
If I Understand you Correctly; What you are Calling the Stator is Actually the Coil. No No Worries though your Description was Perfect. I am going to Use this Breakdown/IPL at this Addy for Reference if Needed; http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.H and Enter the Model Numbers LT155 and Click Find. Then Select your Model in the Results Area. Then Select Sectional Index. The Ignition Switch is Bad or there is a Bad Safety Switch. The Coil and Module Do No Have a Power Source. The Coil is Activated by the Magnets on the Flywheel and the Module Makes the Pulse so the Coils Fires the Plug. When the Coil Module or Spark Plug are Grounded the Fire Stops and the Engine Quits. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
---------- FOLLOW-UP ----------
QUESTION: Checking that wire again I find that it is NOT on ground when I'm sitting on
the seat and the foot on the brake, proper procedure for starting, so I think
that part is working. I did connect the battery and when I turn the key
nothing happens except the headlights. Voltage is not getting to the starter.
I assume the solenoid is bad as I have 12v going to the solenoid but the 12v
isn't getting passed on to the starter. There are 2 control wires going to the
solenoid, one has 12v on only when the key is in the start position, and the
other only has 12v when I raise up off the seat. These voltages are measured
with the wires diconnected from the solenoid. I would guess the solenoid is
bad. I thought about connecting the battery lead directly to the starter to see
if that works. Is that safe? Could I just carefully use a pliers to jumper across
the 2 solenoid terminals that connect the big wires from the battery and
starter ? I measure around 8 ohms between the 2 control terminals on the
solenoid with those small wires unattached. Anything else to check to
confirm I need to buy a new solenoid ?
Answer Hello Again Dave:
Take a Jumper Wire and Attach One End to the Positive Post of the Battery. Take the Other End and Lightly Touch the Small Terminals (one at a Time) and See if the Solenoid Works. If the Solenoid Does Not Work when Operated this Way, then it is Bad and needs to be Replaced. Hope this Helps. Let me know what Happens, Please. I am here if you Require more Assistance. Thanks.
Good Luck
Respectfully
John
