P2195

DTC Troubleshooting: P2195, P2197

DTC P2195:

Rear A/F Sensor (Bank 1, Sensor 1) Signal Stuck Lean

DTC P2197:

Front A/F Sensor (Bank 2, Sensor 1) Signal Stuck Lean

NOTE:

- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
- Information marked with an asterisk (*) applies to the front bank (Bank 2).
- If the vehicle was out of fuel and the engine stalled before this DTC was stored, refuel, then clear the DTC with the HDS.
- If DTC P2101, P2118, P2135, P2138, P2176, or a combination of P2122 and P2127, P2122 and P2138 or P2127 and P2138 is stored at the same time as DTC P2195 (P2197)*, troubleshoot those DTCs first, then recheck for DTC P2195 (P2197)*.

1. Check for dirt or debris on the MAF sensor/IAT sensor.

Is there dirt or debris?

YES -

Remove the dirt or debris. If needed, replace the MAF sensor/IAT sensor Service and Repair, then go to step 9.

NO -

Go to step 2.

2. Check the installation of the A/F sensor (Sensor 1).

Is the A/F sensor loose or improperly installed in the exhaust pipe?

YES -

Go to step 7.

NO -

Go to step 3.

3. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

4. Clear the DTC with the HDS.

5. Start the engine, and let it idle for 2 minutes.

6. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P2195 and/or P2197* indicated?

YES -

Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM, then go to step 14.

NO -

Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.�

7. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

8. Reinstall the A/F sensor (Sensor 1) A/F Sensor Replacement.

9. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

10. Reset the PCM with the HDS.

11. Do the PCM idle learn procedure PCM Idle Learn Procedure.

12. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P2195 and/or P2197* indicated?

YES -

Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM, then go to step 1.

NO -

Go to step 13.

13. Monitor the OBD STATUS for DTC P2195 and/or P2197* in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?

YES -

Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 12, go to the indicated DTC's troubleshooting.�

NO -

If the HDS indicates FAILED, check for poor connections or loose terminals at A/F sensor (Sensor 1) and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, keep idling until a result comes on.

14. Update the PCM if it does not have the latest software PCM Update, or substitute a known-good PCM.

15. Start the engine, and let it idle for 2 seconds.

16. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P2195 and/or P2197* indicated?

YES -

Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 15. If the PCM was substituted, go to step 1.

NO -

Go to step 17.

17. Monitor the OBD STATUS for DTC P2195 and/or P2197* in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?

YES -

If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM Service and Repair. If any other Pending or Confirmed DTCs were indicated in step 16, go to the indicated DTC's troubleshooting.�

NO -

If the HDS indicates FAILED, check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 15. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, keep idling until a result comes on.