A/F Sensor Heater and HO2S Heater Monitor (EVAP Leak Check Model)

OBD System Description - A/F Sensor Heater and HO2S Heater Monitor (EVAP Leak Check Model)

System Description / Monitoring Procedure

For both A/F sensor and HO2S heaters, the system monitors proper current and loaded voltage.

DTC Description / Detecting / Confirmation Procedure

P0031, P0032
Refer to DTC P0031 P0131
P0037, P0038
Refer to DTC P0037 P0137

A/F Sensor Heater Monitor

Operation





Enable conditions





Typical malfunction thresholds





HO2S Heater Monitor

Operation





Enable conditions








MODE $06 Data