Charging Systems: Description

Eldorado uses a CS144 (140-amp) generator. "CS" stands for charging system and "144" denotes the outside diameter (in millimeters) of the generator stator laminations.

The generator and related charging system circuitry has self-diagnostic capability. A communication process has been incorporated between Instrument Panel Cluster (IPC), Powertrain Control Module (PCM) and generator. When generator circuit voltage passes outside of programmed limits (10-16 volts), Diagnostic Trouble Codes (DTCs) will be set. The malfunction may also be indicated by BATTERY VOLTS LOW, BATTERY VOLTS HIGH or SERVICE ENGINE SOON message on Driver Information Center (DIC).

The voltage regulator is enclosed in a solid mold, mounted inside the generator. A capacitor, mounted in the end frame, protects the rectifier bridge from high voltage and suppresses radio noise.