Search results

With all of your batts dead, even with a 24v slave jump, you don’t always get the 12v to activate the relays.

Outermost terminals are negative. 12v is connected to the positive on the first batt which is also connected to the negative of the second battery. So you have the 12v from the first battery and then 24v from the two batts in series.

Closest to the bus looks like the ground cable, would have to see a better pic of the 3rd though, next one in is the 12v that bridges the batts.

Post a pic of your battery box. Taken from a distance that all the wiring can be seen.

All batts sit positive left forward towards frame

24v positive is towards the back, 12v lead goes left to right between the 2 battery rows and the lead at the outer end of the batt box is the negative.

The alternator is dual voltage and charges both 12 and 24. Chances are you lost your regulator 24 volts and the alternator is not exciting. Take off the 2 leads going to the regulator and tape them off. Take the 24 volt connection on your fuel solenoid, usually the outer connection, but verify...