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6 CHECK REAR HEATED OXYGEN SENSOR 2 (REAR)-I Without CONSULT-II 1. Start engine and drive vehicle at a speed of more than 70 km/h (43 MPH) for 2 consecutive minutes. engine ground. 4. 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.) SEF313XA OK or NG OK © GO TO 9. NG © GO TO 7. 7 CHECK REAR HEATED OXYGEN SENSOR 2 (REAR)-II Idle vehicle for 10 minutes, then check voltage between the same terminals as in Test No. 6; or check voltage when coast- CAUTION: Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a OK or NG OK © GO TO 9. NG © GO TO 8. 8 REPLACE REAR HEATED OXYGEN SENSOR 1. Stop vehicle and turn ignition switch “OFF”. SEF372Z CAUTION: Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool © Replace malfunctioning heated oxygen sensor 2 (rear). GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX DTC P0139, P0159 HEATED OXYGEN SENSOR 2 (REAR) (BANK 1)/(BANK 2) (RESPONSE MONITORING) Diagnostic Procedure (Cont’d) EC-275 |