Conditions for Setting the DTC
WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects an open in the heater circuits of the HO2S when the heater is commanded OFF.
- The condition exists for less than 6 second for DTC P0030 or the condition exists for less than 1 second for DTC P0036.