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 Fluorescent Dye Leak Detection
Special Tool(s) Cordless/Rechargeable True UV LED Light ES 023-00182 or equivalent R-134a Loop/Add On Injector Kit-Set 219-00069 or equivalent R-134a Manifold Gauge Set 300-R0B40134AE or equivalent R-13 ...