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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 225 (Data Communication System) >> Diagnostic Information and Procedures >> DTC U18B9-U18BF: High Speed CAN Bus Subnet Configuration List >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify DTC U18B9-U18BF is not set.
    1. Program the device that set the DTC.
    2. Ignition OFF, remove the scan tool, open and close the driver door. Wait 60 s.
    3. Verify the DTC does not set.
      • If the DTC sets, replace the appropriate device.
      • If the DTC does not set
    4. All OK.
    • If DTC U18B9-U18BF is not set 
  3. All OK
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