GM Service Manual Online
For 1990-2009 cars only

Important: Review the system operation and circuit description in order to familiarize yourself with the system functions. Refer to Wiper/Washer System Description and Wiper/Washer System Circuit Description

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the Wiper/Washer System. Refer to Checking Aftermarket Accessories in Wiring Systems.
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
    • Ensure all mechanical components are operative before diagnosing the electrical portion of the system.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

    •  LOW WASHER FLUID Message Always On
    •  LOW WASHER FLUID Message Inoperative
    •  Wipers All Modes Inoperative
    •  Wipers Delay Mode Inoperative
    •  Wipers High Mode Inoperative, Low Mode Operates
    •  Wipers Low or Mist Modes Inoperative
    •  Wipers Low Mode Inoperative, High Mode Operates
    •  Wipers Always On
    •  Wipers Blades Do Not Park
    •  Washers Always On
    •  Washers Inoperative