DTC P2271: Lack Of Ho2S-12 Switch, Sensor Indicates Rich
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P2271 - LACK OF HO2S-12 SWITCH, SENSOR INDICATES RICH
| Description: | See the description for DTC P2270. | ||
| Possible Causes: | See the possible causes for DTC P2270. | ||
| Diagnostic Aids : | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test H . | ||