Conditions for Setting the DTC
WARNING: This page is about a different car, the 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Critical operational parameters stored in EEPROM have failed Checksum test indicating invalid data.
- Masked ROM code has failed Checksum test indicating that masked ROM data is no longer valid.
- ROM code has failed Checksum test indicating that ROM data is no longer valid.
- One or more ROM locations have failed operational test indicating that some portions of RAM are not functional.