Alternator & Regulator: Description
CAUTION:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES
article in the GENERAL INFORMATION section before disconnecting battery.
The 124-amp, CS144 alternator is used in conjunction with a Body Control Module (BCM). CS stands for charging system and 144 denotes outside diameter (in millimeters) of alternator stator laminations.
Alternator and related charging system circuitry have self-diagnostic capability. A communication process exists between BCM and CS144 alternator, which permits alternator to interface with BCM. When alternator circuit exceeds programmed limits, malfunction may be indicated by ELECTRICAL PROBLEM message on warning light cluster.
Voltage regulator, enclosed in a solid mold, is mounted inside alternator. A capacitor, mounted in end frame, protects rectifier bridge from high voltage and suppresses radio noise.