Tripac apu alt code no start

All power is good. Fuses are good . main fuse is good. I am going to check and clean grounds tomorrow

 

As it tries to start no, just stationary. And have power everywhere its supposed to be.. Where should i be taking voltage readings on the board as it starts? What voltage should i be seeing

 

I dont know about the breaker... It gets all the way until its about to activate the starter then the control panel throws a alt code...i dont know enough about these systems.. Its seems overly complicated for being an engine that cycles coolant and runs an ac and heater..

where am i testing for voltage on the board ? Is there a certain fuse or test prong i should be testing?

 

Well i didnt get alot of time to work on this today, but i checked voltages while starting.. And definatly dropping from 12.5 to 11.8 as it tries to kick the starter on... Then throws alt code.... I started at batteries.. No voltage drop there.. So ive traced it back to the alternator and dropping voltage there... But the power cable goes to the starter before it gets to the alternator and that cable on the starter is so frickin corroded i think thats where im dropping the power at... Gotta take some parts off to access that bolt... I will work on it tomorrow and see if i can get it fixed... Also cleaned up the grounds while i was at it... Will post back tmrw with an update

 

Thanks for reminding me. I forgot to check that. I should start there before i tear everything out to get to the starter