Just like any other electrical component, an automobile horn can malfunction. There might be a short in the wiring somewhere causing the horn to blare uncontrollably, or maybe the problem lies with the car's security system. If the alarm is being set off, either by a loud noise like fireworks or thunder, or by heavy precipitation, the horn will sound repeatedly. For any of these reasons, you may wish to temporarily disable your CR-V's horn. This can be done easily by following the steps below.
1. Pop the hood
The hood release lever is located under the steering wheel, close to the floor. It is a black lever that sits right above the gas compartment lever, and it has a picture of a white car with its hood raised on it. Pull this lever toward you to release the hood lock.
2. Raise the hood
There is a latch under the hood that will prevent it from being lifted more than a couple of inches, just to the right of the Honda "H" on the front of the vehicle. Lift up on the hood with one hand as far as you can and find this latch with your other hand, then push the latch to the left to release it.
To make the hood stay up so you don't have to hold it, use the metal bar that lies across the front frame of the car. This bar is topped by a white plastic tip that sits right in front of the battery on the right side of the car as you are standing in front of it. Pull the bar upward and insert the plastic tip into the hole in the underside of the hood on the left side. (This hole has an imprinted arrow right next to it, pointing to it.) Make sure the bar is securely fitted into the hole before letting go of the hood.
3. Remove the fuse box cover
The fuse box is a black plastic box located on the right side of the engine compartment, behind the battery. Pull the cover off of it by grasping and pushing in the four tabs (two on the front side, two on the rear) and lifting the cover off.
4. Remove the horn relay
The fuse box contains many fuses and relays that control various parts of the vehicle. On the right side of the fuse box you will see a row of three black rectangles; these are relays, and the horn relay is the middle one. Remove this relay by pulling it straight up and out. If you can't pull it out with your hand, try using a pair of needle-nose pliers. Place this relay somewhere safe, preferably somewhere in the CR-V so that you'll have it nearby when you want to reinstall it.
5. Reattach the fuse box cover
Place the fuse box cover back on the fuse box and push it straight down to snap it into place. The large black protrusion on the bottom of the cover goes in the back (away from you).
6. Close the hood
Push the hood up slightly and remove the bar that is keeping it raised. Lay this bar back across the front of the CR-V, snapping it into the white plastic clip that holds it in place. Then lower the hood gently until it is a foot or so above the engine and let it drop.
7. Test the horn
To be sure you removed the correct relay, press on the center of the steering wheel to activate the horn. The horn should not sound; if it does, you removed the wrong relay.
Tips & Warnings:
- For safety reasons, always make sure the car is off before doing anything inside the fuse box.
- If you want to double check that you have the right relay before removing it, the underside of the fuse box cover contains a diagram showing which fuse or relay sits where.
- When reinserting the horn relay, line up the terminals on the bottom of the relay with the slots in the relay cavity.
(Originally published on Helium.com, 2011)
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