Component Inspection

Engine Control(SULEV)
P0139 O2 Sensor Circuit Slow Response(Bank 1 / Sensor 2) - Inspection/Repair:_:Component Inspection

Component Inspection

1. Visually/physically inspect the following conditions:
- Ensure that the sensor is securely installed
- Check for corrosion on terminals
- Check for damaged wiring
- Repair as necessary and go to next step
2. Warm up the engine to normal operating temperature and let it idle.
3. Connect Scantool and monitor the O2 SNSR VOL.-B1/S2 parameter on the Scantool data list.

Specification :Above 0.6V at idle

4. Is sensor data near the specified value?