Oxygen Sensor Monitor
OBD System Description - Oxygen Sensor MonitorSystem Description / Monitoring Procedure
Primary HO2S
For a primary HO2S, the system monitors maximum and minimum voltage, lean-to-rich and rich-to-lean response rates, and switching cycles during monitoring conditions once per driving cycle. The sensor is also monitored for activity continuously.
Secondary HO2S
A secondary HO2S is used for catalyst monitoring and dual oxygen sensor control for fuel control system. The output voltage of the secondary HO2S is maintained to be close to target voltage by dual oxygen sensor control. 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
P0131, P0132, P1131, P1132
Refer to DTC P0131 / P0132 / P1131 / P1132: O2 Sensor (Bank 1 Sensor -1) Circuit Low Voltage Shift / High Voltage Shift / Circuit Continuity / Circuit High Voltage:H27 Engine.
P0133
Refer to DTC P0133: O2 Sensor (Bank 1 Sensor-1) Circuit Slow Response:H27 Engine.
P0134
Refer to DTC P0134: O2 Sensor (Bank 1 Sensor-1) No Activity Detected:H27 Engine.
P0137
Refer to DTC P0137: O2 Sensor (Bank 1 Sensor-2) Circuit Low Voltage:H27 Engine.
P0138, P0140
Refer to DTC P0138 / P0140: O2 Sensor (Bank 1 Sensor-2) Circuit High Voltage / No Activity Detected:H27 Engine.
P0151, P0152, P1151, P1152
Refer to DTC P0151 / P0152 / P1151 / P1152: O2 Sensor (Bank 2 Sensor-1) Circuit Low Voltage Shift / High Voltage Shift / Circuit Continuity / Circuit High Voltage:H27 Engine.
P0153
Refer to DTC P0153: O2 Sensor (Bank 2 Sensor-1) Circuit Slow Response:H27 Engine.
P0154
Refer to DTC P0154: O2 Sensor (Bank 2 Sensor-1) No Activity Detected:H27 Engine.
P0157
Refer to DTC P0157: O2 Sensor (Bank 2 Sensor-2) Circuit Low Voltage:H27 Engine.
P0158, P0160
Refer to DTC P0158 / P0160: O2 Sensor (Bank 2 Sensor-2) Circuit High Voltage / No Activity Detected:H27 Engine.
Operation:
Enable Conditions:
Common Prohibition Mode:
Typical Malfunction Thresholds:
Primary HO2S Monitor
Operation:
Enable Conditions:
Common Prohibition Mode:
Typical Malfunction Thresholds:
Primary HO2S Circuit Monitor
Operation:
Enable Conditions:
Common Prohibition Mode:
Typical Malfunction Thresholds:
Secondary HO2S Circuit Monitor
Operation:
Enable Conditions:
Common Prohibition Mode:
Typical Malfunction Thresholds:
Secondary HO2S Monitor
Mode $06 Data Part 1:
Mode $06 Data Part 2:
MODE $06 Data