DTC Descriptors
WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
This diagnostic procedure supports the following DTCs:
- DTC P1021 Auxiliary Injector 1 Control Circuit
- DTC P1022 Auxiliary Injector 2 Control Circuit
- DTC P1023 Auxiliary Injector 3 Control Circuit
- DTC P1024 Auxiliary Injector 4 Control Circuit
- DTC P1025 Auxiliary Injector 5 Control Circuit
- DTC P1026 Auxiliary Injector 6 Control Circuit
- DTC P1027 Auxiliary Injector 7 Control Circuit
- DTC P1028 Auxiliary Injector 8 Control Circuit