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16 CHECK ECM RELAY 1. Apply 12V direct current between ECM relay terminals 1 and 2. SEF296X OK or NG OK © GO TO 17. NG © Replace ECM relay. 17 CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II 1. Turn ignition switch “OFF”. Refer to WIRING DIAGRAM. Continuity should exist. 4. Also check harness for short to power. OK or NG OK © GO TO 18. NG © Repair open circuit or short to power in harness or connectors. 18 CHECK INTERMITTENT INCIDENT Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-145. © INSPECTION END TROUBLE DIAGNOSIS FOR POWER SUPPLY QG18DE Main Power Supply and Ground Circuit (Cont’d) EC-153 |