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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-63 STEP 6. Measure the power supply voltage at ECM ECU check harness special tool MB992110 between the (2) Turn the ignition switch to the "ON" position. (3) Measure the voltage between terminal No. 1 and ground. • Voltage should be battery positive voltage. (4) Turn the ignition switch to the "LOCK" (OFF) position. present? valve connector B-25 (terminal No. 1) and ECM STEP 7. Check for harness damage between MFI relay P.00E-2 . Then go to Step 10. YES : Go to Step 8. AK604040 ECM AB Body side harness MB992110 AK604220 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 AB Power plant ECU |