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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.
  2. Verify that seat motor control circuit DTCs B1770 or B2015 are not set with seat position sensor DTCs B174B or B175C.
    • Go to next step: If B1770 or B2015 is not set 
  3. Verify DTCs B174B, B174C, and B175C are not set together.
    • If all DTCs are set 

      Refer to Circuit/System Testing - DTCs B174B, B174C, and B175C

    • If just DTC B174B is set 

      Refer to Circuit/System Testing - DTC B174B

    • If just DTC B175C is set 

      Refer to Circuit/System Testing - DTC B175C

    • Go to next step: If no DTCs are set 
  4. All OK.
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