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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1936 (Wiper System & Washer System) >> Diagnostic Information and Procedures >> Windshield Wiper Washer System Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, wiper switch in the OFF position, observe the scan tool Windshield Washer Switch parameter while cycling the WASH switch ON and OFF. The parameter should cycle between Active and Inactive.
    • If the parameter does not cycle between the specified values, refer to Multifunction Switch Circuit Malfunction.
  2. Operate the washers using the WASH switch. Verify the washer pump activates and the low speed wipers turn on.