Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

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
Engine running.
Verify the scan tool HO2S 1 or 2 parameters are between 50-1, 50 mV.
- If not between 50-1, 50 mV
  Refer to Circuit/System Testing.
- If between 50-1, 50 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
All OK.