System Check - Charging System - Delphi CS-144 (KG9) and Valeo A13VI+ (K68)

When the charging system is operating normally, the charge indicator lamp will come on when the ignition switch is turned ON and will go out when the engine starts. If the lamp operates abnormally, refer to Charge Indicator Always On or Charge Indicator Inoperative. If an undercharged or overcharged battery condition occurs, refer to Battery is Undercharged or Overcharged. Automotive generators produce a certain amount of low level sound during normal operation. This sound is caused by a combination of mechanical and electrical/magnetic conditions in the generator. Typically, the sound level will be higher during periods of high output demand on the generator. Objectionable noise from a generator may be caused by conditions causing normal sound to be transmitted directly to the passenger compartment, by mounting problems, or by internal generator conditions. The following can cause objectionable noise: Charge Indicator Always On Battery Is Undercharged or Overcharged
^ Improper routing of hoses, wiring, shielding, etc., against the generator housing.
^ Loose drive pulley
^ Loose mounting bolts
^ Mounting the generator in a bind.
^ Worn or dirty bearings
^ A faulty or damaged diode, stator, or rotor