What fuse controls the horn on 2004 Pontiac grand prix?

The horn fuse on a 2004 Pontiac Grand Prix is usually a low amperage fuse (typically 10A or 15A), but its location within the fuse box isn't consistently labeled as simply "Horn." You'll need to consult your owner's manual. The manual will have a fuse box diagram showing the fuse layout and the amperage of each fuse. Look for a fuse associated with the horn, accessories, or possibly the power distribution module (PDM).

Without your owner's manual, I can't pinpoint the exact fuse number. To find it:

1. Locate your fuse box: There's usually one under the hood and another inside the car, often near the steering column or under the dashboard.

2. Consult your owner's manual's fuse box diagram: This diagram will show you the location and amperage of each fuse.

3. Look for fuses labeled "Horn," "Accessory," or something similar. If nothing is explicitly labeled "Horn," you may have to test fuses with a multimeter. You'll need to carefully pull fuses one by one and check their continuity. However, only do this if you are comfortable with basic automotive electrical work and know the safety procedures.

Warning: Always disconnect the negative battery terminal before working with fuses or electrical components in your vehicle.