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3 CHECK GROUND CIRCUIT 1. Turn ignition switch “OFF”. SEF207W Continuity should exist. 3. Also check harness for short to power. OK or NG OK © GO TO 5. NG © GO TO 4. 4 DETECT MALFUNCTIONING PART Check the following. I Harness connectors E123, F6 I Harness for open or short between ECM and engine coolant temperature sensor I Harness for open or short between engine coolant temperature sensor and TCM (Transmission control module) © Repair open circuit or short to power in harness or connectors. 5 CHECK ENGINE COOLANT TEMPERATURE SENSOR Refer to “Component Inspection”, EC-176. OK or NG OK © GO TO 6. NG © Replace engine coolant temperature sensor. 6 CHECK INTERMITTENT INCIDENT Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-146. © INSPECTION END GI MA EM LC FE CL MT AT AX SU BR ST RS BT HA SC EL IDX DTC P0115 ENGINE COOLANT TEMPERATURE SENSOR (ECTS) (CIRCUIT) Diagnostic Procedure (Cont’d) EC-175 |