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Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 219 (Wiper System And Washer System) >> Diagnostic Information and Procedures >> Windshield Wiper System Malfunction >> Circuit/System Testing >> Wiper Park Circuit Test
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Wiper Park Circuit Test

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the M75 windshield wiper motor.
  2. Ignition ON, test for B+ between signal circuit terminal C and ground.
    • If not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the K9 BCM.
  3. If the circuit tests normal, test or replace the M75 windshield wiper motor.
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