P2A01

DTC P2A01

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

- Be sure to troubleshoot first unexpected DTCs previously detected in "DTC Confirmation Procedure".
- Confirm that the following conditions are met in this "DTC Confirmation Procedure".

- ECT (Stuck lean and stuck rich) >= 70 °C (158 °F)
- DTC P0037, P0038, P0131, P0132, P0137, P0138 or P2237 is not detected.

1) Connect scan tool with ignition mode of keyless push start system in "OFF".
2) Warm up engine to normal operating temperature.
3) Drive vehicle at 50 - 100 km/h (31 - 62 mile/h) for 5 min.
4) Release accelerator pedal, and keep vehicle coasting for 10 sec. with engine braking applied. (fuel cut condition.)
5) Drive vehicle at 50 - 80 km/h (31 - 50 mile/h) for 1 min.
6) Stop vehicle and run engine at idle speed.
7) Check whether O2 sensor readiness/monitoring test has completed or not by using scan tool.

If O2 sensor readiness/monitoring test has not completed, check vehicle conditions (environmental) and repeat Step 2) through 5).

DTC Troubleshooting

1.
Was "Engine and Emission Control System Check" performed?
YES -
Go to Step 2.
NO -
Go to Engine and Emission Control System Check Engine and Emission Control System Check.

2. Exhaust system for leakage check

Check exhaust system for leakage.

Is it in good condition?
YES -
Go to Step 3.
NO -
Repair or replace defective parts.

3. HO2S check

Check HO2S. HO2S On-Vehicle Inspection

Is it in good condition?
YES -
Replace ECM and recheck DTC. Service and Repair
NO -
Replace HO2S. Service and Repair