Here's a tip when reading the diagrams.
'Battery' is commonly used as a shorthand for power supply regardless of whether the power is coming from the battery or the alternator.
Colors may vary but typical power scheme looks like this
View attachment 1715680658
Notice the alternator output terminal is marked "Batt", and the headlight switch input terminals are B1 and B2. This what I mean by shorthand.
These main feeds are always hot (when the battery is connected).
But when the headlights areactually powered by the battery (12.5 V) they look dim compared to when they are supplied by the alternator (14 V).
Second tip.
On many cars Chrysler labled the ammeter face 'alternator'. This is somewhat confusing as it doesn't show alternator output.
The ammeter shows battery charging or discharging.
When the battery is fully charged, the meter should read zero while driving.
If its showing discharge while driving, then the alternator isn't supplying power.
In that way it does provide an indicator of alternator performance.
Easiest is to think of it as battery Charge - Discharge meter.
