GM Service Manual Online
For 1990-2009 cars only

Begin the system diagnosis by reviewing the Power Outlets Description and Operation. Reviewing the Description and Operation will help to determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help to determine if the condition described by the customer is normal operation. Refer to Symptoms - Power Outlets in order to identify the correct procedure for diagnosing the system and where the procedure is located.