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6 CHECK SHIELD CIRCUIT 1. Turn ignition switch “OFF”. I Continuity between joint connector-1 terminal 2 and ground I Joint connector-1 Continuity should exist. 4. Also check harness for short to power. OK or NG OK © GO TO 7. NG © Repair open circuit or short to power in harness or connectors. 7 CHECK INTERMITTENT INCIDENT Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-146. © INSPECTION END SEF662Y Component Inspection NCEC0161 HEATED OXYGEN SENSOR 2 (REAR) NCEC0161S01 With CONSULT-II 1) Start engine and drive vehicle at a speed of more than 70 km/h 2) Stop vehicle with engine running. 3) Select “FUEL INJECTION” in “ACTIVE TEST” mode, and 4) Check “HO2S2 (B1)” at idle speed when adjusting “FUEL ± 25%. “HO2S2 (B1)” should be above 0.68V at least once when CAUTION: I Discard any heated oxygen sensor which has been I Before installing new oxygen sensor, clean exhaust sys- SEF244Y GI MA EM LC FE CL MT AT AX SU BR ST RS BT HA SC EL IDX DTC P0138 HEATED OXYGEN SENSOR 2 (REAR) (MAX. VOLTAGE MONITORING) Diagnostic Procedure (Cont’d) EC-251 |