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Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT4. 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 U300D, P2534, P2535, U0073 - U007E, or U100B is not set.
    • Go to next step: If none of the DTCs are set 
  3. Refer to Circuit/System Testing.
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