Which fuse do you change for the right side rear brake and turn signal light on a 1984 GM Van?

A 1984 GM van's wiring diagram is necessary to definitively answer which fuse controls the right rear brake and turn signal lights. There isn't a single, universally applicable answer across all GM van models from that year. The fuse box layout and assignments varied depending on the specific model (G-series, etc.) and options.

To find the correct fuse:

1. Locate your owner's manual: This is the best place to start. The manual should have a diagram of the fuse box with a legend explaining what each fuse protects.

2. Check the fuse box cover: Often, there's a diagram printed on the inside of the fuse box cover itself.

3. Consult a wiring diagram: A wiring diagram specific to your van's year, make, and model will show you exactly which fuse is responsible for the right rear brake and turn signal circuit. You can usually find these diagrams online through sites specializing in automotive repair information (some require a subscription). You'll need to know the exact model of your van (e.g., G20, G30, etc.) to find the correct diagram.

Important Note: Before replacing any fuses, ensure your van's ignition is turned off. Also, always replace a blown fuse with one of the same amperage rating. If a fuse keeps blowing, there's likely a short circuit in the wiring, and addressing the underlying problem is crucial to avoid further damage.