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EC-168 < COMPONENT DIAGNOSIS > [VK56DE] P0139, P0159 HO2S2 If not, warm up engine and go to next step when “COOLAN TEMP/S” indication reaches to 70 °C (158°F). 7. Open engine hood. CONSULT-III. 9. Following the instruction of CONSULT-III. NOTE: It will take at most 10 minutes until “COMPLETED” is displayed. 10. 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:0000000005149187 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. 6. 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.) A change of voltage should be more than 0.12 V for 1 sec- ond during this procedure. If the voltage can be confirmed in step 6, step 7 is not nec- essary. 7. 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. A change of voltage should be more than 0.12 V for 1 sec- ond during this procedure. 8. If NG, go to Diagnosis Procedure INFOID:0000000005149188 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten three ground screws on the body. OK or NG OK >> GO TO 2. PBIB2054E BBIA0354E |