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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Wiper System & Washer System) >> Diagnostic Information and Procedures >> Washer Malfunction >> Circuit/System Testing >> Washer Fluid Pump Test

Washer Fluid Pump Test

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the windshield washer fluid pump.
  2. Test for less than 1 ohm of resistance between the ground circuit terminal B and ground.
    • If greater than 1 ohm, repair the ground circuit for an open/high resistance.
  3. Connect a test lamp between the washer pump control circuit terminal A and ground.
  4. Ignition ON, command the Wiper Washer Motor ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
    • If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the underhood fuse block.
  5. If all the circuits test normal, test or replace the windshield washer fluid pump.
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