Conditions for Setting the DTC: Notes
WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
Heater Current Test
- The PCM detects that the affected HO2S Heater current parameter is more than 1.375 amps or less than 0.25 amps.
- The above condition is met for 10 seconds.