DTC Description

The ECM monitors rich-lean switching time of Rear Heated Oxygen Sensor (HO2S) after fuel cut-off to validate dynamic behavior of Rear Heated Oxygen Sensor (HO2S). After detection of fuel cut-off Engine operating state, the ECM measures rich-lean switching time of the Rear Heated Oxygen Sensor (HO2S) signal and compares it to the predetermined limit value. DTC P013A-00 is set when the switching time is bigger than the limit value.