Will not turn over with key will strat f unplug and bypass

[66goat]

Well you have come to the limit of what I can do for you without a wiring diagram.
IT sounds like the power wire from the hour meter to the solenoid has an internal break, but the hour meter should not be connected to the starting circuit so it does not make sense to me as you are describing it.
The seat switch and the parking brake switch work together to kill the engine so you can get off with the parking brake applied and the engine continues to run.
But if you get off without the brake oapplied the engine dies.
The parking brake and the motion control levers ( both of them ) are connected together as well so if you try to move the mower with the brake still applied it will kill the engine.
All of the above are earth ciricuts so you are checking for continuity or open circuits at these switches, not power.

Sounds very much like the parking brake switch is faulty but as stated above I have no wiring diagram

I have tested the brake switch and it is faulty either that or there is a ground on the other side of the circuit. When I tested the plunger with a test light it will stay light up while depressing it. About a quarter of the way down it will briefly kill the test light then come back on and stays on in the fully depressed mode. If I'm thinking this system correctly it should release the ground when the plunger is all the way extended which is parking brake off.. The thing I don't get is why there is no crank signal I have traced the orange wire at the key start signal to the hour meter I get a signal to start there but nothing coming out the rest of the wires are grounded by the drive handle switches. I ordered a switch will see if that fixes it but I think there ar 2 issues. Thanks for the response.

 

[BlazNT]

 

[66goat]

View attachment 28071

Thanks. will help allot.

 

[bertsmobile1]

I have tested the brake switch and it is faulty either that or there is a ground on the other side of the circuit. When I tested the plunger with a test light it will stay light up while depressing it. About a quarter of the way down it will briefly kill the test light then come back on and stays on in the fully depressed mode. If I'm thinking this system correctly it should release the ground when the plunger is all the way extended which is parking brake off.. The thing I don't get is why there is no crank signal I have traced the orange wire at the key start signal to the hour meter I get a signal to start there but nothing coming out the rest of the wires are grounded by the drive handle switches. I ordered a switch will see if that fixes it but I think there ar 2 issues. Thanks for the response.

Well according to the wiring diagram there are three wires at the hour meter that should go + 12 V in the start position
One gets a feed direct from the key switch
the other, which is the one that triggers the solenoid goes through both neutral switches then the pto switch and then to both the hour meter and the starter solenoid.
From the diagram these look to be orange / white wires.
Unfortunately the supplied diagram has no parking brake switch shown so unless you can confirm that the wiring digram is correct and add the parking brake to it I will have to bow out as telling me what coloured wire has or has not got power or earth is of no use without a diagram to see actually where it goes to & what it is conncted to.

I have a systematic process to go through when diagnosising faulty wiring diagrams but it is way to complicated to post in a set by step generic mannar that could be followed by others.

Just remember the only + wires ar the ones that trip the start solenoid, power the PTO clutch and recharge the battery.
All the rest of the rires are eaths so all the rest of the switches will simply be earth switches connected to other earth switches so a lot of them will have earths both sides of the switch depending upon what the other switches that are connected to are doing.

 

[66goat]

Well according to the wiring diagram there are three wires at the hour meter that should go + 12 V in the start position
One gets a feed direct from the key switch
the other, which is the one that triggers the solenoid goes through both neutral switches then the pto switch and then to both the hour meter and the starter solenoid.
From the diagram these look to be orange / white wires.
Unfortunately the supplied diagram has no parking brake switch shown so unless you can confirm that the wiring digram is correct and add the parking brake to it I will have to bow out as telling me what coloured wire has or has not got power or earth is of no use without a diagram to see actually where it goes to & what it is conncted to.

I have a systematic process to go through when diagnosising faulty wiring diagrams but it is way to complicated to post in a set by step generic mannar that could be followed by others.

Just remember the only + wires ar the ones that trip the start solenoid, power the PTO clutch and recharge the battery.
All the rest of the rires are eaths so all the rest of the switches will simply be earth switches connected to other earth switches so a lot of them will have earths both sides of the switch depending upon what the other switches that are connected to are doing.

Thanks for your input the hour meter has 4 wires orange with white tracer from the key for start signal this is functional the other 3 at this time are earth they are orange with black tracers . I know the park brake switch is faulty so I will replace it and go from there the diagram is not correct but will help with my diagnosis it is a process of elimination but does help with a good diagram. Thanks

 

[bertsmobile1]

I will hazard a guess that MTD are using the hour meter plug to do electrical diagnosis on their mowers as there is no earthy reason why all those wires need to go to the hour meter.
Hence my surprise when you first stated that the starter trigger wire was hooked up to the hour meter.
OTOH this will be good for the dealers who buy the kit because it can take forever to pin point electrical problems.
If they pass that on to the customer is of course another question all together.

 

[66goat]

I will hazard a guess that MTD are using the hour meter plug to do electrical diagnosis on their mowers as there is no earthy reason why all those wires need to go to the hour meter.
Hence my surprise when you first stated that the starter trigger wire was hooked up to the hour meter.
OTOH this will be good for the dealers who buy the kit because it can take forever to pin point electrical problems.
If they pass that on to the customer is of course another question all together.

I suspect you would be correct as I would have just run key hot and ground to operate it . Iwill get it figured out process of elimination. Thx.