G16E Diodes, Function question

[Salty]

I Would like to know the purpose/ function of Diodes A+B in the wiring diagram
for the G16E and are they the same part # or value? Also what would cause A to become true/shorted? I used my ohm meter and got .01 in both direction.
Thank you in advance

[dougmcp]

Diode A is for main solenoid protection.
Diode B is for forward/reverse protection.
When you checked them were they in circuit or out of circuit?
I've see them just disintegrate but have never thought why.

[Salty]

Thanks
Dougmcp, They were out of circuit, I have a short some where down stream of the of "A" diode, the 10amp fuse fries when I plug the A diode in. I will have to look further, but I won't be able to look for the problem for a few days.
On a separate note, I did some checking today and found the part#s were the same for both A&B diodes.
I will post what I find. Once again Thanks

[dougmcp]

Kind of a conundrum, if there's a dead short it will take out the diode, if the diode's out it will take the fuse.
Seems like you know your way around a meter and circuits so I look forward t the finding and resolution.
Good to see you here, with all the electric carts, we can always use electrical help.

[Salty]

An update and another request for Knowledge. I had a chance to continue troubleshooting, I removed the A and B diodes , jumped the A circuit. No more blown fuses, but found the solenoid actuated when the key was switched on.
Found the accelerator microswitch contacts welded closed. Repaired that and contactor/solenoid working with 37+ when acc pedal depressed.
My request is " What does the controller look for before output to what looks like the Neg side of A2. No travel/ motion yet
i

As always thank you for your Wisdom

[forbruce]

diodes are chiep enough to just replace ...

Rat shack has 3amp diodes that will work fine for about $2

make sure you observe polarity when you put them back in line

[dougmcp]

An update and another request for Knowledge. I had a chance to continue troubleshooting, I removed the A and B diodes , jumped the A circuit. No more blown fuses, but found the solenoid actuated when the key was switched on.
Found the accelerator microswitch contacts welded closed. Repaired that and contactor/solenoid working with 37+ when acc pedal depressed.
My request is " What does the controller look for before output to what looks like the Neg side of A2. No travel/ motion yet
i

As always thank you for your Wisdom

Thanks for following up and letting us know you got it fixed.

[dougmcp]

diodes are chiep enough to just replace ...

Rat shack has 3amp diodes that will work fine for about $2

make sure you observe polarity when you put them back in line

Good info forbruce, thanks.