P2195

DTC P2195: A/F Sensor (Sensor 1) Signal Stuck Lean

NOTE: If the vehicle was out of fuel and the engine stalled before this DTC was stored, refuel and clear the DTC with the HDS.

1. Inspect the condition of the A/F sensor (Sensor 1).

Is it loose in the exhaust pipe?

YES - Go to step 2.

NO - Go to step 4.

2. Turn the ignition switch OFF.
3. Reinstall the A/F sensor (Sensor 1).
4. Turn the ignition switch ON (II).
5. Reset the ECM/PCM with the HDS.
6. Do the ECM/PCM idle learn procedure. Programming and Relearning
7. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P2195 is indicated, check for poor connections or loose terminals at the A/F sensor Sensor 1) and the ECM/PCM, then go to step 1. If he connection and terminal fits are OK, go to step 9. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM.
Go to step 8.

8. Monitor the OBD STATUS for DTC P2195 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES - Troubleshooting is complete.

NO - If the screen indicates FAILED, check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM, then go to step 2. If the screen indicates NOT COMPLETED, go to step 5 and recheck.

9. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.
10. Start the engine, and run it at 3,000 rpm without load (A/T in Park or Neutral) until the radiator fan comes on.
11. Let the engine idle for 2 minutes.
12. Check for temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P2195 is indicated, check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM.

NO - Troubleshooting is complete.