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P0138 HO2S2 ECM-213 < DTC/CIRCUIT DIAGNOSIS > [MR20DD] C D E F G H I J K L M A ECM N P O >> GO TO 2. 2. DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A 1. Start engine and warm it up to the normal operating temperature. 2. Turn ignition switch OFF and wait at least 10 seconds. 3. Restart engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no 4. Check 1st trip DTC. Is 1st trip DTC detected? YES >> Proceed to ECM-214, "Diagnosis Procedure" . NO-1 >> With CONSULT: GO TO 3. NO-2 >> Without CONSULT: GO TO 5. 3. DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-1 WITH CONSULT Test condition: For better results, perform “DTC WORK SUPPORT” at a temperature of 0 to 30 ° C (32 to 86 ° F). 1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT. 2. Start engine and warm it up to the normal operating temperature. 3. Turn ignition switch OFF and wait at least 10 seconds. 4. Restart engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no 5. Let engine idle for 1 minute. 6. Check that “COOLAN TEMP/S” indicates more than 70 ° C (158 ° F). If not, warm up engine and go to next step when “COOLAN TEMP/S” indication reaches 70 ° C (158 ° F). 7. Open engine hood. 8. Select “O2 (B1) P0138” of “HO2S2” in “DTC WORK SUPPORT” mode with CONSULT. 9. Follow the instruction of CONSULT display. 10. Touch “SELF-DIAG RESULTS”. OK-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident" OK-2 >> Confirmation after repair: INSPECTION END NG >> Proceed to ECM-214, "Diagnosis Procedure" . CAN NOT BE DIAGNOSED>>GO TO 4. 4. DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-2 1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle). 2. Perform DTC confirmation procedure again. >> GO TO 3. 5. PERFORM COMPONENT FUNCTION CHECK-1 WITHOUT CONSULT NOTE: Start engine and warm it up to the normal operating temperature. 2. Turn ignition switch OFF and wait at least 10 seconds. 3. Restart engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no 4. Let engine idle for 1 minute. 5. Check the voltage between ECM harness connector terminals under the following conditions. |