Circuit/System Testing

WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

DTC U3000 with failure type byte 41, 42, or 49

Verify that the DTC is not set with FTB 41, 42, or 49.
- If the DTC is set
  Replace the B218 Side Obstacle Detection Control Module that is setting the DTC.
- Go to next step: If the DTC is not set
All OK.

DTC U3000 with failure type byte 54, 56, or 57

Ignition ON.
Verify that the DTC is not set with FTB 54, 56, or 57.
- If the DTC is set
1. Program the B218 Side Obstacle Detection Control Module.
2. Verify the DTC does not reset.
  - If the DTC resets, replace the B218 Side Obstacle Detection Control Module that is setting the DTC.
  - Go to next step: If the DTC does not reset
3. All OK.
- Go to next step: If the DTC is not set
All OK.