P2A03
DTC P0153 / P2A03: O2 Sensor Circuit Slow Response / Performance (Sensor-1, Bank-2)Wiring Diagram
Wiring Diagram:
A/F Sensor Description
Refer to A/F Sensor Description
DTC Detecting Condition and Trouble Area
DTC Detecting Condition And Trouble Area:
DTC Confirmation Procedure
WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and a tester, on a level road.
NOTE: Check to make sure that the following conditions are satisfied when using this "DTC Confirmation Procedure".
- Intake air temperature: -14 °C (7 °F) to 70 °C (158 °F).
- Engine coolant temperature: 40 °C (104 °F) or more.
Other than MEXICO model:
- The following DTCs are not detected (when DTC P0153 is detected): IAT sensor, ECT sensor, barometric pressure sensor, MAF sensor,VSS and A/F sensor heater.
MEXICO model:
- The following DTC is not detected (when DTC P0153 is detected): A/F sensor heater.
1. With ignition switch OFF, connect scan tool.
2. Turn ON ignition switch and clear DTC by using scan tool.
3. Start engine and warm up to normal operating temperature.
4. Drive vehicle at 40 mph (60 km/h) or higher. (engine speed: 2500 - 3000 r/min.)
5. Keep above vehicle speed for 6 min. or more. (Throttle valve opening is kept constant in this step.)
6. Release accelerator pedal and with engine brake applied, keep vehicle coasting (with fuel cut for 3 sec. or more) and then stop vehicle.
7. Check if DTC and pending DTC exist by using scan tool. If not, check if oxygen sensor monitoring test has been completed by using scan tool. If not in both of above checks (i.e., no DTC and pending DTC and oxygen sensor monitoring test not completed), check vehicle condition (environmental) and repeat Step 3) through 6).
DTC Troubleshooting
NOTE: Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to Precautions for DTC Troubleshooting.
