P0145

DTC P0145: Third HO2S (Sensor 3) Slow Response

1. Reset the ECM/PCM.
2. Start the engine. Hold the engine at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on.
3. Test-drive under following conditions.
- 55 - 65mph (89 - 105 km/h) steady speed
- CVT in D position (M/T in 4th or 5th gear)
- Until the readiness code or Temporary DTC P0145 and/or P0145 is set

4. Check for a Temporary DTC with the HDS or a scan tool.

Is Temporary DTC P0145 and/or P0145 indicated?

YES - Replace the secondary HO2S (Sensor 2) and the third HO2S (Sensor 3).

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the third HO2S (Sensor 3) and at the ECM/PCM.