Diagnostic Fault Information
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
HO2S Heater Sensor 1
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| HO2S Heater Voltage Supply | Opens fuse P0030, P0036, P0053, P0054, P0134, P0135, P0140, P0141 |
P0053 | P0030, P0053, P0135 | - | P0135 |
| HO2S Heater Low Control | P0030, P0036 | P0053 | P0030, P0053, P0135 | P0030, P0135 | P0135 |
HO2S Heater Sensor 2
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| HO2S Heater Voltage Supply | Opens fuse P0030, P0036, P0053, P0054, P0134, P0135, P0140, P0141 |
P0054 | P0036, P0054, P0141 | - | P0141 |
| HO2S Heater Low Control | P0030, P0036 | P0054 | P0036, P0054, P0141 | P0036, P0141 | P0141 |