69 Valiant Charging Concern
The basics are the battery ONLY is on one side of the ammeter. The loads and alternator are on the other side. Some vehicles violate this rule, AKA later A bodies. The "path" for the battery is battery---starter relay big stud---fuse link--bulkhead connector (RED) and to ammeter. Through ammeter (BLACK) to in harness WELDED SPLICE. From there branches off back through bulkhead connector to alternator, and from the splice, feeds the ignition switch "in", feeds the fuse panel "hot" buss and feeds headlights switch (only, not park/ tail) and depending on model, some other things, wipers, maybe
This diagram is not correct for all years, but generally. This is from the MAD article concerning ammeter and bulkhead connector failures:
You can clearly see in this simplified diagram how the ammeter is separated. The main starter cable does not count
Catalog
The basics are the battery ONLY is on one side of the ammeter. The loads and alternator are on the other side. Some vehicles violate this rule, AKA later A bodies. The "path" for the battery is battery---starter relay big stud---fuse link--bulkhead connector (RED) and to ammeter. Through ammeter (BLACK) to in harness WELDED SPLICE. From there branches off back through bulkhead connector to alternator, and from the splice, feeds the ignition switch "in", feeds the fuse panel "hot" buss and feeds headlights switch (only, not park/ tail) and depending on model, some other things, wipers, maybe
This diagram is not correct for all years, but generally. This is from the MAD article concerning ammeter and bulkhead connector failures:
You can clearly see in this simplified diagram how the ammeter is separated. The main starter cable does not count
Catalog