Component Inspection

Engine

Engine Control - P0140 O2 Sensor Circuit No Activity Detected (Bank 1 / Sensor 2) - 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 0.7 V at idle

4. Is sensor data near the specified value?