Scantool Diagnostics

P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

Scantool Diagnostics

Monitor GDS Data

1. Connect GDS to DLC (Data Link Cable).
2. Warm up the engine to normal operating temperature.
3. Monitor "HO2S (S1)" parameter on GDS.




4. Is the "HO2S (S1)" parameter displayed correctly?






NOTE:
This DTC might be caused by the malfunction of Heater circuit, so, check the heater circuit first.