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

P0135
Refer to DTC P0135: O2 Sensor Heater Circuit (Sensor-1). P0135

P0141
Refer to DTC P0141: O2 Sensor Heater Circuit (Sensor-2). P0141

Operation:

Enable Condition:

Typical Malfunction Thresholds:

Primary HO2S Heater Monitor

Operation:

Enable Condition:

Typical Malfunction Thresholds:

Secondary HO2S Heater Monitor

MODE $06 Data:

MODE $06 Data