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.
| Circuit |
Short to Ground |
Open/High Resistance |
Short to Voltage |
Signal Performance |
| HO2S 1 Signal |
P0131 |
P2243 |
P0132 |
- |
| HO2S 1 Low Reference |
P0131 |
P0135 |
P0132 |
- |
| HO2S 2 Signal |
P0137 |
P0140 |
P0137, P2096 |
- |
| HO2S 2 Low Reference |
- |
P0140 |
- |
- |