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 (see GENERAL TROUBLESHOOTING INFORMATION ).
- 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 and clear the DTC with the HDS.
- If DTC P2101, P2108, P2118, P2135, P2138, P2176, U0107, or a combination of P2122 and P2T27, P2122 and P2138, or P2127 and P2138 is stored at the same time, troubleshoot those DTCs first, then recheck for DTC P2195 and/or P2197*.
- 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.
- Turn the ignition switch OFF.
- Reinstall the A/F sensor (Sensor 1) (see A/F SENSOR REPLACEMENT ).
- Turn the ignition switch ON (II).
- Reset the PCM with the HDS.
- Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
- Check for Temporary DTCs or 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 8.
- Monitor the OBD STATUS for DTC P2195 and/or P2197* in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 7, go to the indicated DTCs troubleshooting
NO - If the screen 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 screen indicates NOT COMPLETED, keep idling until a result comes on.