How does the alternator connect to the battery in this diagram?

A red wire labeled "To solenoid" runs from the alternator's output stud to the solenoid terminal, and a black wire labeled "To Battery" runs from that same solenoid terminal to the battery.

How is the idiot light (charge indicator lamp) wired?

A dark blue wire runs from a solenoid terminal to the idiot light, then continues from the idiot light to the small connector on the side of the alternator.

What components are shown in this wiring diagram?

Three components: the solenoid, the alternator, and the idiot light, connected by black, red, and blue wires.

Does the red alternator output wire connect anywhere else besides the solenoid?

Yes, near the alternator the red wire branches from the output stud to the small black connector on the side of the alternator.

Home/ Registry/ Ford/ Bronco/ 1987-1991/ 1990 Ford Bronco/ Photo supermotors.net/registry/media/817371

Ford Bronco Alternator Wiring Diagram - Solenoid, Idiot Light & Battery Hookup

Simple wiring diagram of alternator, starter solenoid, battery and charge idiot light

‹ ›

Wiring diagram showing alternator-to-solenoid, battery, and idiot light charging-circuit connections.

AI caption August 2010 · Photo 157 of 482

This is a simple hand-drawn (computer-drawn) wiring diagram showing how to wire an alternator, uploaded to a 1990 Ford Bronco gallery. It depicts three components: a solenoid (brown circle with three terminals), an alternator (large gray circle with a main output stud and a smaller side connector), and an "Idiot Light" (charge indicator lamp, shown as a green rectangle). Three wires are shown: a black wire from the solenoid terminal labeled "To Battery"; a red wire labeled "To solenoid" running from the solenoid's battery terminal to the alternator's output stud, with a branch to the alternator's small side connector; and a dark blue wire running from a solenoid terminal through the idiot light and then to the alternator's side connector. The diagram conveys a minimal charging-system hookup: the alternator output feeds the battery via the solenoid post, while the indicator lamp circuit connects between the solenoid and the alternator's regulator/exciter connector. There are no fuse ratings, wire gauges, part numbers, connector pinouts, or year/model markings anywhere on the document — it is a conceptual schematic only, showing color-coded wire routing between the three components.

Is this accurate? Sign in to help verify it.

Frequently asked questions

How does the alternator connect to the battery in this diagram?: A red wire labeled "To solenoid" runs from the alternator's output stud to the solenoid terminal, and a black wire labeled "To Battery" runs from that same solenoid terminal to the battery.
How is the idiot light (charge indicator lamp) wired?: A dark blue wire runs from a solenoid terminal to the idiot light, then continues from the idiot light to the small connector on the side of the alternator.
What components are shown in this wiring diagram?: Three components: the solenoid, the alternator, and the idiot light, connected by black, red, and blue wires.
Does the red alternator output wire connect anywhere else besides the solenoid?: Yes, near the alternator the red wire branches from the output stud to the small black connector on the side of the alternator.