GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Turn ignition switch to the START position.

Engine cranks.

2

Engine running.

Charging system operating properly.

Volt/charge indicator operating properly

Battery Is Undercharged or Overcharged

Charge Indicator Always On

Charge Indicator Inoperative

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.