Scantool Diagnostics

P0135 O2 Sensor Heater Circuit (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 operating correctly?