Scantool Diagnostics

Engine Control

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

Monitor Scantool Data

1. Connect GDS to Data Link Connector (DLC).
2. IG "ON".
3. Select "DTC" button, and then Press "DTC Status" to check DTC's information from the DTCs menu.
4. Read "DTC Status" parameter.




5. Is parameter displayed "Present fault"?