DTC Descriptors: Notes
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostic procedure supports the following DTCs:
- DTC U1XXX Lost communication With XXX Module
DTC U1001-U1254
| Control Module | ID Number |
|---|---|
| BCM | 064 |
| DIC | 097 |
| DRR | 137 |
| EBCM | 040 |
| HUD | 098 |
| HVAC | 153 |
| IPC | 096 |
| PCM | 016 |
| Radio | 128 |
| SDM | 088 |
When more than one Loss of Communication DTC is set in either one module or in several modules, diagnose the DTCs in the following order:
- Current DTCs before history DTCs unless told otherwise in the diagnostic tables.
- The DTC which is reported the most times.
- From the lowest number DTC to the highest number DTC.