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Home >> Cadillac >> 2021 >> XT5 Luxury, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 347 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P30D2 >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2021 GMC Sierra 3500 HD and 2021 GMC Sierra 2500 HD. 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 P30D2 is not set.
    • If the DTC is set 
    1. Replace the component: K20 Engine Control Module
    • Go to next step: If the DTC is not set 
  3. All OK.