Oxygen Sensor Monitor
OBD System Description - Oxygen Sensor MonitorSystem Description / Monitoring Procedure
Primary A/F sensor For a primary A/F sensor, the system monitors maximum and minimum voltage, lean-to-rich and rich-to-lean response rates, and switching cycles during monitoring conditions continuous. The sensor is also monitored for activity continuously.
Secondary HO2S
A secondary HO2S is used for catalyst monitoring. With non-aged catalyst system, amplitude of the voltage changing is very narrow and slow. But along with aging of the catalyst, the amplitude is going to be wider and quicker. Then the system calculates average of the voltage during monitoring conditions once per driving cycle, and compares the average with malfunction criteria.
DTC Description / Detecting Condition / Confirmation Procedure
P0133, P2A00
Refer to DTC P0133 / P2A00: O2 Sensor Circuit Slow Response / Performance (Sensor-1, Bank-1). P0133
P0134
Refer to DTC P0140: O2 Sensor Circuit No Activity Detected (Sensor-2, Bank-1). P0134
P0137, P0138
Refer to DTC P0137 / P0138: O2 Sensor Circuit Low Voltage / High Voltage (Sensor-2, Bank-1). P0137
P0139, P2A01
Refer to DTC P0139 / P2A01: O2 Sensor Circuit Slow Response / Performance (Sensor-2, Bank-1). P0139
P0140
Refer to DTC P0140: O2 Sensor Circuit No Activity Detected (Sensor-2, Bank-1). P0140
P0153, P2A03
Refer to DTC P0153 / P2A03: O2 Sensor Circuit Slow Response / Performance (Sensor-1, Bank-2). P0153
P0154
Refer to DTC P0154: O2 Sensor Circuit No Activity (Sensor-1, Bank-2). P0154
P0157, P0158
Refer to DTC P0157 / P0158: O2 Sensor Circuit Low Voltage / High Voltage (Sensor-2, Bank-2). P0157
P0159, P2A04
Refer to DTC P0159 / P2A04: O2 Sensor Circuit Slow Response / Performance (Sensor-2, Bank-2). P0159
P0160
Refer to DTC P0160: O2 Sensor Circuit No Activity Detected (Sensor-2, Bank-2). P0160
P2195, P2196
Refer to DTC P2195 / P2196: O2 Sensor Signal Stuck Lean / Stuck Rich (Sensor-1, Bank-1). P2195
P2197, P2198
Refer to DTC P2197 / P2198: O2 Sensor Signal Stuck Lean / Stuck Rich (Sensor-1, Bank-2). P2197
P2237
Refer to DTC P2237: O2 Sensor Positive Current Control Circuit / Open (Sensor-1, Bank-1). P2237
P2238, P2239
Refer to DTC P2238 / P2239: O2 Sensor Positive Current Control Circuit Low / High (Sensor-1, Bank-1). P2238
P2240
Refer to DTC P2240: O2 Sensor Positive Current Control Circuit / Open (Sensor-1, Bank-2). P2240
P2241, P2242
Refer to DTC P2241 / P2242: O2 Sensor Positive Current Control Circuit Low / High (Sensor-1, Bank-2). P2241
P2252, P2253
Refer to DTC P2252 / P2253: O2 Sensor Negative Current Control Circuit Low/High (Sensor-1, Bank-1). P2252
P2255, P2256
Refer to DTC P2255 / P2256: O2 Sensor Negative Current Control Circuit Low/High (Sensor-1, Bank-2). P2255
Primary A/F Sensor Monitor:
Enable Conditions:
Typical Malfunction Thesholds:
Primary A/F Sensor Monitor
Primary A/F Sensor Circuit Monitor:
Enable Conditions:
Typical Malfunction Thesholds:
Primary A/F sensor Circuit Monitor
Secondary HO2S Monitor:
Enable Conditions:
Typical Malfunction Thesholds:
Secondary HO2S Monitor
Secondary HO2S Circuit Monitor:
Enable Conditions:
Typical Malfunction Thesholds:
Secondary HO2S Circuit Monitor
MODE $06 Data:
MODE $06 Data