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EC-166 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE] P0137, P0157 HO2S2 7. Let engine idle for 1 minute. ° C (158 ° F). If not, warm up engine and go to next step when “COOLAN TEMP/S” indication reaches 70 ° C (158 ° F). 9. Open engine hood. “DTC WORK SUPPORT” mode with CONSULT-III. 11. Follow the instruction of CONSULT-III. NOTE: It will take at most 10 minutes until “COMPLETED” is displayed. 12. Make sure that “OK” is displayed after touching “SELF-DIAG RESULTS”. If “NG” is displayed, refer to . If “CAN NOT BE DIAGNOSED” is displayed, perform the following. a. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle). Overall Function Check INFOID:0000000006243868 Use this procedure to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st trip DTC might not be confirmed. WITH GST 1. Start engine and warm it up to the normal operating temperature. ground. 8. Check the voltage when revving up to 4,000 rpm under no load at least 10 times. (Depress and release accelerator pedal as soon as possible.) The voltage should be above 0.68V and below 0.18V at least once during this procedure. If the voltage can be confirmed in step 6, step 7 is not nec- essary. 9. Keep vehicle at idling for 10 minutes, then check the voltage. Or check the voltage when coasting from 80 km/h (50 MPH) in D position with “OD” OFF. The voltage should be above 0.68V and 0.18V at least once during this procedure. 10. If NG, go to Diagnosis Procedure INFOID:0000000006243869 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. PBIB1607E 2011 Pathfinder |