Ford Focus II cars are equipped with three-phase alternators with electromagnetic excitation, with built-in rectifier unit and electronic voltage regulator. The fan impeller and drive pulley are located on the generator shaft. The shaft is mounted on sealed type bearings that do not require additional lubrication during the entire service life. The shaft is driven from the crankshaft pulley by a V-ribbed belt.
In addition to the electronic regulator built into the generator, the electronic engine block additionally controls the generator operation modes. It automatically increases the generator output voltage at low ambient temperatures to more efficiently recharge the battery, turns off the generator when the engine is started, and increases the engine idling speed when the generator is heavily electrically loaded. In the event of any malfunctions in the power supply system and when the ignition is switched on with the engine not running, the engine control unit turns on the battery discharge signal lamp.
NOTE: Codes of emerging faults in the power supply system are stored in the memory of the electronic engine control unit. They can be read using a scanner at the service.
USEFUL ADVICE: Recently, many companies specializing in the repair of imported generators and starters have appeared. There you can diagnose a faulty unit, purchase spare parts for any model of the generator (starter), get qualified advice. If you are not sure you can repair the generator (starter) independently, it makes sense to contact such a company, where the repair of these units will be performed quickly, efficiently and, as a rule, at an affordable price. However, on high mileage vehicles, it is often more cost effective to replace the assembly with a new one than to replace failed parts.
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