Oxygen Sensor Monitor

OBD System Description - Oxygen Sensor Monitor

System Description / Monitoring Procedure
HO2S are used for catalyst monitoring and fuel control system (sub feed back). ECM monitors maximum and minimum voltage, insufficient activity response rates when monitoring conditions are met. If detects malfunction, the ECM will set DTC.

DTC Description / Detecting Condition / Confirmation Procedure
P0130 / P0150
Refer to DTC P0130 / P0150
P0131 / P0151
Refer to DTC P0131 / P0151 P0131
P0132 / P0137 / P0138 / P0152 / P0157 / P0158
Refer to DTC P0132 / P0137 / P0138 / P0152 / P0157 / P0158 P0132
P0133/ P0134 / P013E / P0140 / P014A / P0153/ P0154 / P0160
Refer to DTC P0133 / P0134 / P013E / P0140 / P014A / P0153 / P0154 / P0160 P0133
P013A / P013C
Refer to DTC P013A / P013C P013A
P2270 / P2271 / P2272 / P2273
Refer to DTC P2270 / P2271 / P2272 / P2273 P2270
P2232 / P2235
Refer to DTC P2232 / P2235 P2232

HO2S-1 Circuit Monitor (Sensor Circuit Short to Heater Circuit (Monitor 1), Sensor Signal Stuck Rich (Monitor 2), Sensor Signal Stuck Lean (Monitor 3))

Operation

Enable conditions

Typical malfunction thresholds

HO2S-1 Circuit Monitor (Short Circuit to Ground (Warm Check)(Monitor 1), Short Circuit to Ground (Cold Check) (Monitor 2))

Operation

Enable conditions

Typical malfunction thresholds

Mode $06 data

HO2S-1 Circuit Monitor (Short Circuit to Battery Voltage)

Operation

Enable conditions

Typical malfunction thresholds

Mode $06 data

HO2S-1 Circuit Monitor (Slow Response)

Operation

Enable conditions

Typical malfunction thresholds

Mode $06 data

HO2S-1 Circuit Monitor (Sensor Circuit Disconnection (Monitor 1), Sensor Activity Check or Sensor Circuit disconnection (Monitor 2))

Operation