Kia Carnival 2007 Workshop Manual page 1206

3. Check for continuity between the terminals in each position according to the table.
BURGLAR HORN
1. Remove the burglar horn after removing 2 bolts and disconnect the 2P connector from the burglar horn.
2. Test the burglar horn by connecting battery power to the terminal 1 and ground the terminal 2.
3. The burglar horn should make a sound. If the burglar horn fails to make a sound replace it.