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Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON/Vehicle In Service Mode.
  2. Verify DTC U0300-U0336 is not set.
    • If DTC U0300-U0336 is set 
    1. Program the device specified by the DTC descriptor.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the device specified by the DTC descriptor.
      • Go to next step: If the DTC does not set
    3. All OK.
    • Go to next step: If DTC U0300-U0336 is not set 
  3. All OK
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