DTC P2197: Lack of HO2S-21 Switch, Sensor Indicates Lean
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
P2197 - LACK OF HO2S-21 SWITCH, SENSOR INDICATES LEAN
| Description: | See the description for DTC P2195 . | ||
| Possible Causes: | See the possible causes for DTC P2195 . | ||
| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | - | GO to H: Fuel Control STEP H16. | GO to H: Fuel Control STEP H16. |