Component Inspection

Engine

Engine Control - P0138 O2 Sensor Circuit High Voltage (Bank 1 / Sensor 2) - 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 GDS and monitor the HO2S SENSOR VOL.-B1/S2 parameter on the GDS data list.

Specification : Above 0.7 V at idle

4. Is sensor data near the specified value?