Ford Focus Service Manual: Exterior Lighting

Headlamp Bulb - Removal and Installation

NOTE: The headlamp assembly is shown removed for clarity.   Item Part Number Description 1 13008 Headlamp assembly 2 13N021 Headlamp bulb ...

Exterior Lighting - Description and Operation

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM) . The exterior lighting system consists of the following components: Headlamp assemblies Fog lamps ( ...

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Ford Focus Data and Communication Network
NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM) . Multiplexing is a method of sending 2 or more signals simultaneously over a single circuit. Multiplexing is used to allow 2 or more electronic modules (nodes) to communicate simultaneously over a twiste ...