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SEF054TI SEF056TH SEF409WA SEF390UA q A CHECK INPUT SIGNAL CIRCUIT. gen sensor 1 (front) harness connector 3. Check harness continuity between ECM and sensor terminals. Continuity should exist. 4. Check harness continuity between ECM and sensor or ground. Continuity should not exist. OK E NG Repair harness or connec- CHECK COMPONENT OK E NG REPLACE HO2S1 (front). harness protector color. 2. Replace malfunctioning HO2S1 (front) CHECK COMPONENT OK E NG REPLACE HO2S1 (front). harness protector color. 2. Replace malfunctioning HO2S1 (front) CHECK COMPONENT OK E NG Replace mass air flow sen- CHECK COMPONENT OK E NG Repair or replace PCV Perform “TROUBLE DIAGNOSIS FOR OK INSPECTION END DTC Terminals Bank (Harness protector color) ECM Sensor P0133 83 2 B1 (Black) P0153 82 2 B2 (Blue) DTC Terminals Bank (Harness protector color) ECM or sensor Ground P0133 83 or 2 Ground B1 (Black) P0153 82 or 2 Ground B2 (Blue) GI MA EM LC FE AT PD FA RA BR ST RS BT HA EL IDX TROUBLE DIAGNOSIS FOR DTC P0133 (B1), P0153 (B2) Heated Oxygen Sensor 1 (Front) (P0133: Bank H H H H H H H EC-193 |