Conditions For Running DTC
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Key ON Test
- No generator, CKP sensors, or CMP sensor DTC's are set.
- The key is in the RUN position.
- The engine is not running.
Run Test
- No generator, CKP sensors, or CMP sensor DTC's are set.
- The engine is less than 3000 RPM.