Code No. P0133: Oxygen Sensor (front) Circuit Slow Response <M/T>










OPERATION




FUNCTION




TROUBLE JUDGMENT


Check Conditions
Judgement Criterion

PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III data list



  • Refer to Data List Reference Table .

    1. Item AC: Oxygen sensor (front)

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
Go to Step 2 .

STEP 2. Check oxygen sensor (front) itself.



  • Check oxygen sensor (front) itself (Refer to ).

Q. Is the check result normal?

Go to Step 3 .
Replace the oxygen sensor (front).

STEP 3. Connector check: C-45 oxygen sensor (front) connector and B-08 engine-ECU connector


Q. Is the check result normal?

Go to Step 4 .
Repair or replace the connector.

STEP 4. M.U.T.-III data list



  • Refer to Data List Reference Table .

    1. Item AC: Oxygen sensor (front)

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
Replace the engine-ECU.

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