Diagnostic Aids
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
If a step is interrupted before completion, perform the remaining portion of the set procedure. Any portion of the set procedure that requires the engine at operating temperature may be repeated. This will allow most of the diagnostic tests to run and the remaining tests can be performed using the individual system set procedures.
INSPECTION/MAINTENANCE SYSTEM DTCS
| System | DTCs Required To Set System Status To YES |
|---|---|
| Component Monitoring | DTCs P0236, P0741 & P0742 |
| Exhaust Gas Recirculation (EGR) | DTCs P0101, P0401, P0404 & P1191 |
| Misfire Monitoring | DTCs P0300 & P0301-P0308 |