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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 >> Low Washer Fluid Indicator Malfunction >> Circuit/System Testing

Circuit/System Testing

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.

Low Washer Fluid Indicator Inoperative

  1. Ignition OFF, disconnect the harness connector at the windshield washer fluid level switch.
  2. Ignition ON, verify that the DIC displays the Washer Fluid Level Low message.
    • If the message is not displayed, test the signal circuit for a short to ground. If the circuit tests normal, replace the instrument panel cluster.
  3. If all circuits test normal, replace the windshield washer fluid level switch.

Low Washer Fluid Indicator Always On

  1. Ignition OFF, disconnect the harness connector at the windshield washer fluid level switch.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit terminal B and ground.
    • If greater than 1.0 ohm, repair the ground circuit for an open/high resistance.
  3. Install a 3-amp fused jumper wire between the signal circuit terminal A and ground.
  4. Ignition ON, verify the Washer Fluid Level Low message is not displayed.
    • If the Washer Fluid Level Low message is displayed, test the signal circuit for an open high/resistance. If the circuit test normal, replace the IPC.
  5. If all circuits test normal, replace the windshield washer fluid level switch.
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