Just charged the battery when the horn went off had to remove the mini fuse to stop the horn now the parking lights won't go off
The security system thinks that something is wrong and is sounding the horn and flashing the lights. This is because the system had no battery power. Unlock all the doors, put key in ignition turn all way except to start the engine. remove key from ignition and lock all doors, This may reset the security system.
SOURCE: security system/battery
plz check the following and update me
1. Fuel (To be exact proper air/fuel ratio, normally it is about 14/1)
2. Spark (in appropriate moment)
3. Proper timing (the valves should open and close only in appropriate time)
4. Compression in the cylinders (Normal compression is 120 - 170 psi. The engine won't start if the compression is lower than 70 - 80 psi.)
SOURCE: constant horn blowing
Very possibly the horn relay. This is located in the left junction block ( fuse panel) on the left side of dash. Open driver door and you will see a panel cover on the end of dash. On the cover it should list the position of the relay which I believe is on the right of fuse panel. If you try the horn and it sticks on again, try tapping the relay, if stops then that is the problem.
SOURCE: Horn/lights on 2002 Toyota Tacoma
Rewire your horn from the steering wheel to the horn. Its not difficult, I can't tell you how to take the steering wheel apart but you can get a Haynes Repair Manual. It'll have all you need and more. You can use speaker wire, split it in two. Run one cable from the positive in the battery to the horn switch in the steering wheel. Another from the switch to the horn. You have a short somewhere, to me is easier just to run new wires than to find the short-circuit. Make sure when you run the cables through the firewall you run through a grommet so it does not get damaged by metal. Before anything check your headlight wires that they are not touching the horn.
SOURCE: 2005 Jeep Liberty Horn wont shut off
wiggle the horn on the colum if it stops then the spring on the horn pad has gone bad
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