Component Inspection

P0138 O2 Sensor Circuit High Voltage (Bank 1 / Sensor 2)

Inspection/Repair - Component Inspection

Component Inspection

1. With ignition "OFF", reconnect the HO2S connector
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?