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Circuit/System Verification

WARNING: This page is about a different car, the 2008 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: A DTC B0081 set in history may not clear until the PPS module enters the sleep mode. When removing connectors inspect for damage, corrosion or poor connection. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
    • PPS module
    • SDM module
    • PPS module harness connector
    • SDM wiring harness connector
  1. Ignition ON, retrieve DTCs from the PPS.
  2. Verify that DTC B0081 3A is not set as current.
    • If DTC B0081 3A is current, replace the PPS with the correct part number.
  3. Verify DTC B0081 39 is not set as current.
    • If DTC B0081 39 is current, replace the PPS.
  4. Verify DTC B1000, B1001, or U0170 is not set as current.
  5. Verify DTC B0081 71 or B0081 0F is not set.
    • If DTC B0081 71 or B0081 0F is set, clear the SDM DTCs. No other repairs are necessary.
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