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2 CHECK HO2S1 (FRONT) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. Refer to Wiring Diagram. MTBL0471 Continuity should exist. 3. Check harness continuity between ECM terminal or HO2S1 terminal and ground as follows. Refer to Wiring Diagram. MTBL0472 Continuity should not exist. 4. Also check harness for short to power. OK or NG OK (With CONSULT-II) © GO TO 3. OK (Without CONSULT- © GO TO 4. NG © Repair open circuit or short to ground or short to power in harness or connectors. GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX DTC P0130, P0150 HEATED OXYGEN SENSOR 1 (FRONT) (BANK 1)/(BANK 2) (CIRCUIT) Diagnostic Procedure (Cont’d) EC-199 |