Conditions for Running the DTC

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 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 3,200 RPM.
- The engine speed is not changing more than 250 RPM for 5 seconds.
- Fan command is greater than 0 percent.
For DTC P0493 is that the engine is running.