Circuit/System Verification
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify no HO2S heater DTCs are set.
- If a DTC is set.
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If a DTC is not set.
- If a DTC is set.
- Engine running.
- Verify the scan tool HO2S Sensor 1 or 2 parameters are between 50-1,050 mV.
- If not between 50-1,050 mV.
Refer to Circuit/System Testing.
- If between 50-1,050 mV.
- If not between 50-1,050 mV.
- Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
- Verify the DTC does not set.
- If the DTC sets.
Refer to Circuit/System Testing.
- If the DTC does not set.
- If the DTC sets.
- All OK.