Conditions for Running the DTC

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

For DTC P0483:
- The engine is running.
- The system voltage is greater than 8.5 volts.
- The intake air temperature (IAT) is greater than -7°C (19°F).
- DTCs P0480 and P0526 are not set.
- The engine speed is less than 3200 RPM.
- The engine speed is not changing more than 250 RPM for 5 seconds.
- Fan command is greater than 0%.
For DTC P0493 is that the engine is running.