DTC Display Order

In the diagnostic mode, Diagnostic Trouble Codes (DTCs) are displayed in the following order:
1. DTC 12
2. Any current DTCs (DTC 21-DTC 25) or any history DTCs (DTC 31-DTC 35)
3. The remote control door lock transmitter diagnostic DTCs (DTC 41 -DTC 45)
These DTCs will display if they are evoked while in the diagnostic mode.
4. The begin configuration display (DTC 55). DTC 55 and 2 configuration numbers are always displayed. The first number following DTC 55 is the hardware configuration. The second number is the software configuration.
5. After the configuration numbers are displayed, the entire list is repeated beginning with DTC 12.

System faults are stored as current or history DTCs. When working on systems controlled by the Body Control Module, always refer to this section and test for DTCs.