Remove the front bumper cover.
(Refer to Body - "Front Bumper Cover")
After loosening each mounting bolt of the high-pitch horn (A) and low-pitch horn (B), detach the connector (C) and remove the horn.
Install the horns after connecting the horn connectors.
Install the front bumper cover.
Test the horn by connecting battery voltage to the 1 terminal and ground the 2 terminal.
The horn should make a sound. If the horn fails to make a sound, replace it.
Horn relay is installed on the PCB fuse & relay block in the engine room block.
This PCB relay is needed to replace with the PCB fuse & relay block assembly only.