Car lost all electrical while driving
Here's the sequence I'd follow for the checking the positive side.
Altering it perhaps based on what I find.
Check at the battery - that's your baseline.
Then second, at the connecting stud on the relay.
After doing the engine bay side, back probe the bulkhead connections from the inside.
Then either the column connector or the fusebox hot side, whichever is easier.
Main feed to the ignition switch (9) on your car may have red insulation instead of black. This is just a general diagram based on the late 60s cars.
Headlight switch B1 terminal is probably too difficult.
Ammeter access I don't know, but may be possible.
By this point you have found the break area or not.
If its not ground to engine or chassis, it has to be main feed since the headlights are out.
Two guys here have recently found a loose connection at the ammeter on '70 or '71 non-ralley cars. Plenty of folks have found bad connections at fusible links and bulkhead connectors. I've had bad connections at the battery connectors. So they are all possibilities. At least one guy on the jeep forum found his battery feed wire shorting under the dash (insulation had rubbed off) and several folks have had alternator's short out. These last two generally cause the fusible link to melt, as its supposed to.
Here's the sequence I'd follow for the checking the positive side.
Altering it perhaps based on what I find.
Check at the battery - that's your baseline.
Then second, at the connecting stud on the relay.
After doing the engine bay side, back probe the bulkhead connections from the inside.
Then either the column connector or the fusebox hot side, whichever is easier.
Main feed to the ignition switch (9) on your car may have red insulation instead of black. This is just a general diagram based on the late 60s cars.
Headlight switch B1 terminal is probably too difficult.
Ammeter access I don't know, but may be possible.
By this point you have found the break area or not.
If its not ground to engine or chassis, it has to be main feed since the headlights are out.
Two guys here have recently found a loose connection at the ammeter on '70 or '71 non-ralley cars. Plenty of folks have found bad connections at fusible links and bulkhead connectors. I've had bad connections at the battery connectors. So they are all possibilities. At least one guy on the jeep forum found his battery feed wire shorting under the dash (insulation had rubbed off) and several folks have had alternator's short out. These last two generally cause the fusible link to melt, as its supposed to.
