Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
- 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.