LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 191 (Data Communications - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC U2205 >> Circuit/System Verification

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 U0073 - U007E is not set.
    • Go to next step: If none of the DTCs are set 
  3. Determine the device that is not communicating. Refer to Control Module U Code List .
  4. Refer to Data Link References  to determine which data communication bus the non communicating device is on.
  5. Verify DTC U2205 is not set.
    • If the DTC is set 

      Refer to Circuit/System Testing.

    • Go to next step: If the DTC is not set 
  6. A fault is currently not present and may be an intermittent condition.
scientia non olet · About LEMON Manuals