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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 >> Heated Washer Nozzle Malfunction >> Circuit/System Testing

Circuit/System Testing

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 OFF, disconnect the harness connector at the appropriate heated washer nozzle.
  2. Test for less than 10 ohms between the ground circuit terminal 2 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, rear defogger ON, verify a test lamp illuminates between the control circuit terminal 1 and ground.
    • If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance.
  4. If all circuits test normal, test or replace the heated washer nozzle.
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