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Circuit/System Testing

WARNING: This page is about a different car, the 2010 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the K17 Electronic Brake Control Module.
  2. Test for less than 10 Ω between the ground circuits listed below and ground.
    • Terminal 13
    • Terminal 38
    • If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. If all circuits test normal, replace the brake pressure modulator valve assembly and verify the DTC does not reset.
    • If the DTC resets, replace the K17 Electronic Brake Control Module.
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