P0133

DTC P0133

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".

- DTC P0031, P0032, P0131, P0132 or P2237 is not detected.

1) Warm up engine to normal operating temperature.
2) Drive vehicle at 60 - 100 km/h (37 - 62 mile/h) for 6 min. (Keep throttle valve opening constant and engine speed 1,000 rpm or more in this step.)

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. DTC check
Is there any DTC(s) other than P0133?
YES
Go to troubleshooting for applicable DTC.
NO
Go to Step 3.
3. A/F sensor signal circuit check
Check "A3" and "A4" circuits according to Step 3 under P0131 DTC P0131 / P0132 / P0134 / P2237.
Are they in good condition?
YES
Go to Step 4.
NO
Repair or replace defective wire harness.
4. DTC recheck
Replace A/F sensor. Service and Repair
Perform DTC confirmation procedure and check DTC.
Is DTC P0133 still detected?
YES
Replace ECM and recheck DTC. Service and Repair
NO
End.