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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-689 DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (M.U.T.-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A STEP 1. Check harness connector B-08 at throttle position YES : Go to Step 2. Connector Inspection . Then go to Step 4. STEP 2. Check for harness damage between throttle harness side. (2) Measure the resistance between connector B-08 and connector B-10. a. Connector B-08 (terminal No. 3) and connector B-10 (terminal No. 13). b. Connector B-08 (terminal No. 4) and connector B-10 (terminal No. 10). c. Connector B-08 (terminal No. 5) and connector B-10 (terminal No. 12). d. Connector B-08 (terminal No. 6) and connector B-10 (terminal No. 11). • Should be less than 2 ohms. Q: Is the measured resistance less than 2 ohms? YES : Go to Step 3. AK700285 1 6 5 4 3 2 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 B-08 harness connector: B-10 harness connector: |