2013 honda pilot horn stop blowing when doors locked

if broken during install yes need to replace

Attach the battery cables to the correct positive and negative connections,close the hood,use your remote to lock and unlock the doors and the horn should stop.The vehicle may be in anti theft mode and locking and unlocking the doors with them closed should put the vehicle back into normal mode.
Your radio may show antitheft mode now and the code to return it to normal should be in your vehicle handbook in the glove compartment or attached on a sticker to the side of the glove compartment.It can also be had from a Honda dealer.DO NOT EVER REVERSE YOUR BATTERY CABLE CONNECTIONS.

It can be faulty switch or safety lock enabled.Go through this direct link and follow the step by step process to get the door open from inside:

Click the ;link:--

http://www.howtorepairguide.com/2013/02/honda-pilot-rear-door-lock-wont-open.html

---------

This will help.

Thanks.

horn not connected properly.

Alarm is programable. May have to take to dealer or possible after market shop. When battery power was lost it lost memory.

My 2007 had a broken part (behind the front fender on the left.) My mechanic thinks a critter got into the well, and brushed against the part and broke it. It's about $80 to repair. (Does the horn still sound when you "double-lock" the doors? If so, you might have a short in your steering column.) Mine stopped sounding altogether.

Put the key in the ignition and turn it on.

Probably the door actuator - a part inside the door that activates the lock, particularly if neither the interior lock switch or the remote do not lock the door.  Once the doors lock the horn will beep again - the lack of beep indicates the vehicle is not secure.