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CHARGING SYSTEM TABLE OF CONTENTS page page DESCRIPTION AND OPERATION DIAGNOSIS AND TESTING CURRENT OUTPUT TEST . . . . . . . . . . . . . . . . . . . 1 REMOVAL AND INSTALLATION 2.0L Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPECIFICATIONS DESCRIPTION AND OPERATION CHARGING SYSTEM DESCRIPTION The charging system consists of: • Electronic Voltage Regulator (EVR) circuitry within the Powertrain Control Module (PCM) • Ignition switch (refer to the Ignition System for information) • Battery (refer to the Battery for information) • Battery temperature sensor • Wiring harness and connections (refer to the Wiring for information) OPERATION The charging system is turned on and off with the ignition switch. When the ignition switch is turned to The amount of DC current produced by the gener- ator is controlled by the EVR (field control) circuitry, Temperature data, along with data from monitored line voltage, is used by the PCM to vary the battery All vehicles are equipped with On-Board Diagnos- tics (OBD). All OBD-sensed systems, including the tic Trouble Code (DTC). The PCM will store a DTC in GENERATOR DESCRIPTION The generator is belt-driven by the engine. It is serviced only as a complete assembly. If the genera- OPERATION As the energized rotor begins to rotate within the generator, the spinning magnetic field induces a cur- The Y type stator winding connections deliver the induced AC current to 3 positive and 3 negative Noise emitting from the generator may be caused by: • Worn, loose or defective bearings • Loose or defective drive pulley • Incorrect, worn, damaged or misadjusted drive belt • Loose mounting bolts • Misaligned drive pulley • Defective stator or diode • Damaged internal fins DIAGNOSIS AND TESTING CURRENT OUTPUT TEST The current output test will determine if the charging system can deliver its minimum test cur- JX CHARGING SYSTEM 8C - 1 |