W123 Battery Junction Box - Voltage?

[MattBelliveau]

Should I have voltage at each of the trhee terminals on inside this thing, without the key to on position? If so, can anyone mention how much at each terminal? Thanks!

[junqueyardjim]

I would think just one is hot all the time and that should show just under battery voltage when the switch is off.

[MattBelliveau]

I have two that are hot. Can anyone confirm? Thanks.

[theo3000]

Two of the terminals are connected, but from either of those to the third it's always hot and at full battery voltage.

[Magoo]

If you look closely, you'll notice that the two terminals with the large diameter cables are connected. These should read same as battery voltage at all times. the smaller one is for the starter solenoid and should only be hot when the key is in start position. If you jumper between the large and small terminals, the starter should engage- regardless of the key position, and crank the engine.

[theo3000]

Originally Posted by Magoo

If you jumper between the large and small terminals, the starter should engage- regardless of the key position, and crank the engine.

Doesn't that mean it's always hot? Not being a smark alek - I may not know what the definition of "hot" is.