Ford Focus Service Manual: Horn

Body Electrical

...

Horn - Description and Operation

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM) . The horn system consists of the following components: Horn switch Horn relay (part of the SJB ) ...

More about Ford Focus:

Ford Focus Getting started
CAUTION: Using the system with the engine off will drain the battery. Note: You will be charged when sending and receiving text messages. Note: Refer to your phone handbook for all phone functions and operation. Note: Keep the activation code (printed on the installation guide) in a safe p ...