Call factory or go & ask from mechanic
Carefully
It would be a bad wire or plug
you can remove the horn relay in the fuse box.
With a quick disconnect tool. Your local auto parts store has them and they are not expensive.
Disconnect wires then two bolts holding starter to trans.
You can either disconnect it from the relevant fuse or take your car into the shop for computer diagnostics.
A typical price in the Los Angeles area would be $99-$200
disconnect your battery,pull your fuse and wait about 10 minutes
Disconnect the battery. On the side of the throttle body, disconnect the wiring from the position sensor. Remove the bolts from the sensor, and lift the sensor off, reverse the procedure to install the new one.
Power does not go to the battery, it comes from the battery, except when the car is running. At that time power does go to the battery from the alternator. Disconnect the + battery terminal.
That is called a quick disconnect fitting and it requires a SPECIAL tool to get it loose.
Disconnect the battery for 5 minutes or use an error code reader to erase the computer to the default configuration.