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6. CHECK INJECTOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Turn ignition switch on. • Check injector supply voltage between sensor ter- minal and ground in the electrical connector. • Battery voltage should exist. Is the check result normal? Yes >> Go to step 8. No >> Go to the next step. 7. DETECT MALFUNCTIONING PART • Check the following: − Front fuse and relay box F3, A13, G5 Without EOBD (1.6L). − Front fuse and relay box F3, G2, G5 Is the check result normal? Yes >> With the X-431, check the system, If OK, go to the next step. No >> Repair malfunctioning parts. 8. CHECK INJECTOR CONTROL CIRCUITS FOR A SHORT • Check injector control circuit voltage. • 3.6 V should exist. Is the check result normal? Yes >> Go to step 10. No >> Go to the next step. DIAGNOSIS & TESTING LTSMD030024 03
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