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CHARGING TABLE OF CONTENTS page page CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . 29 . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 DIAGNOSIS AND TESTING - CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 . . . . . . . . . . . . . . . . . 30 SENSOR-BATTERY TEMPERATURE . . . . . . . . . . . . . . . . . . . . . . . . . 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 . . . . . . . . . . . . . . . . . . . . . . . . . 32 GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 . . . . . . . . . . . . . . . . . . . . . . . . . 35 REGULATOR, VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . . 37 . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 CHARGING DESCRIPTION The charging system consists of: • Generator • Generator decoupler pulley (if equipped) • Electronic Voltage Regulator (EVR) circuitry within the Powertrain Control Module (PCM) • Ignition switch • Battery (refer to Battery for information) • Battery temperature sensor • Generator lamp (if equipped) • Check gauges lamp (if equipped) • Voltmeter (refer to Instrument Cluster for information) • Wiring harness and connections (refer to Wiring for information) OPERATION The charging system is turned on and off with the ignition switch. The system is on when the engine is running and The amount of DC current produced by the generator is controlled by the EVR (field control) circuitry contained A battery temperature sensor, located in the battery tray housing, is used to sense battery temperature. This tem- All vehicles are equipped with On-Board Diagnostics (OBD). All OBD-sensed systems, including EVR (field control) The Check Gauges Lamp (if equipped) monitors: charging system voltage, engine coolant temperature and HB CHARGING 8F - 29 |