DTC Description
The downstream heated oxygen sensor (HO2S) is forced rich and lean and monitored by the ECM/PCM. This DTC sets when the ECM/PCM does not detect the output of the HO2S in a calibrated amount of time.
The downstream heated oxygen sensor (HO2S) is forced rich and lean and monitored by the ECM/PCM. This DTC sets when the ECM/PCM does not detect the output of the HO2S in a calibrated amount of time.