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Wiring Diagram for a One-Wire or Two-Wire Alternator

Model: (Various brands) Various
Part: Checks and maintenance

Video tutorial
Detailed instructions - Let's look at how a one-wire alternator works: the alternator has one cable connected, which is the positive terminal that goes directly to the positive side of the battery. The circuit is completed through the engine ground and the battery. The alternator self-excites when it starts to spin. Installation is very simple and ideal for basic vehicles like tractors, boats, and classic cars. The two-wire alternator has a thick wire and a thin one. The thin wire is used to excite the alternator at startup (via the ignition key) and to turn on the battery warning light on the dashboard if the alternator is not charging. When the alternator is charging, the light goes out (voltage equal on both sides).

Posted on 7 October 2026 by ScegliAuto


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Guide to removing the dashboard and the cabin heater radiator of the Renault Kangoo

Today's guide will illustrate the steps to remove and replace the dashboard and the cabin heater radiator of the Renault Kangoo. First, get into the vehicle and start by removing the climate control and radio controls, taking off the plastic cover and unscrewing the fastening screws found underneath; then disconnect the electrical connectors, as shown in the video. Once all components are removed, you can definitively take out the dashboard, removing the cabin heater radiator if necessary!

Watch the video!


by ScegliAuto

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