DTC P2197: A/F/O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1: Notes
WARNING: This page is about a different variant/trim than selected.
DTC detecting condition:
Detected when two consecutive driving cycles with fault occur.
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode Ref. to
OPERATION
, Clear Memory Mode and Inspection Mode Ref. to
PROCEDURE
, Inspection Mode.
Wiring diagram:
Engine Electrical System Ref. to WIRING DIAGRAM , Engine Electrical System.
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK FRONT OXYGEN (A/F) SENSOR CONNECTOR AND COUPLING CONNECTOR. | Has water entered the connector? | Completely remove any water inside. | Go to step 2 |
2 CHECK HARNESS BETWEEN ECM AND FRONT OXYGEN (A/F) SENSOR CONNECTOR.
|
Is the resistance less than 1 Ω? | Go to step 3 | Repair the harness and connector.
NOTE:
In this case, repair the following item:
|
| 3 CHECK FOR POOR CONTACT. Check for poor contact of the front oxygen (A/F) sensor connector. |
Is there poor contact of front oxygen (A/F) sensor connector? | Repair the poor contact of front oxygen (A/F) sensor connector. | Replace the front oxygen (A/F) sensor. Ref. to FRONT OXYGEN (A/F) SENSOR |