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INJECTOR CIRCUIT EC-543 [KA24DE] C D E F G H I J K L M A EC 3. DETECT MALFUNCTIONING PART Check the following. ● Harness connectors F27, M59 ● Fuse block (J/B) connector M26 ● 10A fuse ● Harness for open or short between injector and fuse >> Repair harness or connectors. 4. CHECK OUTPUT SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check harness continuity between injector terminal 2 and ECM terminals 102, 104, 109, 111. 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 6. NG >> GO TO 5. 5. DETECT MALFUNCTIONING PART Check the harness for open or short between ECM and injector. >> Repair open circuit or short to ground or short to power in harness or connectors. 6. CHECK INJECTOR 1. Disconnect injector harness connector. 2. Check resistance between terminals as shown in the figure. OK or NG OK >> GO TO 7. NG >> Replace injector. 7. CHECK INTERMITTENT INCIDENT Perform EC-120, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" >> INSPECTION END Removal and Installation UBS00DD8 INJECTOR Refer to EM-13, "OUTER COMPONENT PARTS" . Continuity should exist. Resistance : 7.3 - 9.9 Ω [at 25°C (77°F)] SEF273W |