Fuse Link

The fuse link is a short length of insulated wire integral with the engine compartment wiring harness. It is several wire gauges smaller than the circuit that it protects. The fuse link for the generator is a 12-gauge gray wire.

The fuse link is designed to burn out, thus protecting the generator and wiring, when heavy reverse current flows, such as when a booster battery is connected incorrectly, or a short to ground occurs in the wiring harness.

A burned-out link may have bare wire ends protruding from the insulation or bubbled insulation with illegible identification. If it is hard to determine if the link is burned out, perform a continuity test.

Typical Fuse Link Installation:

Service fuse links are brown, green or black depending on application. All fuse links have a flag moulded on the wire or on the terminal insulator. Color identification of the flag or connector for the external voltage regulator system is dark blue 20-gauge wire or gray 12-gauge wire.