Ford Focus Service Manual: Charging

Charging System Principles of Operation

The PCM-controlled charging system, or "Smart Charge" charging system, determines the optimal voltage set point for the charging system and communicates this information to the voltage r ...

Charging System

The charging system is a negative ground system consisting of: a generator with an internal voltage regulator. a charging system warning indicator. a battery. circuitry and cables. a ...

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Ford Focus Module Controlled Functions
Smart Junction Box (SJB) The SJB is located under the instrument panel on the driver side (left of the steering column) has control of the following systems: Interior lighting Exterior lighting Dimmable backlighting Battery saver function Delayed accessory relay function Horn ...