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HO2S Heater Monitor

OBD System Description - HO2S Heater Monitor

System Description / Monitoring Procedure
For both primary and secondary HO2S heaters, the system monitors proper current and loaded voltage.

DTC Description / Detecting Condition / Confirmation Procedure

P0031, P0032
Refer to DTC P0031 / P0032: HO2S Heater Control Circuit Low / High (Sensor-1, Bank-1). P0031

P0037, P0038
Refer to DTC P0037 / P0038: HO2S Heater Control Circuit Low / High (Sensor-2, Bank-1). P0038

P0051, P0052
Refer to DTC P0051 / P0052: HO2S Heater Control Circuit Low / High (Sensor-1, Bank-2). P0051

P0057, P0058
Refer to DTC P0057 / P0058: HO2S Heater Control Circuit Low / High (Sensor-2, Bank-2). P0057

Primary A/F Sensor Heater Monitor:




Enable Conditions:




Typical Malfunction Thesholds:




Primary A/F Sensor Heater Monitor

Secondary HO2S Heater Monitor:




Enable Conditions:




Typical Malfunction Thesholds:




Secondary HO2S Heater Monitor

MODE $06 Data:




MODE $06 Data
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