Charging Systems: Description

The CS144, 140-amp generator is used along with the Instrument Panel Cluster (IPC) and Powertrain Control Module (PCM). CS stands for charging system; 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 the IPC, PCM and CS144 generator. When the generator circuit voltage passes outside of programmed limits (10-16 volts), Diagnostic Trouble Codes (DTC) will set. The malfunction may also be indicated by BATTERY VOLTS LOW, BATTERY VOLTS HIGH or SERVICE ENGINE SOON message on the 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.