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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-665 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 actuator YES : Go to Step 2. Connector Inspection . Then go to Step 6. STEP 2. Check the throttle actuator control motor. motor side connector terminal No. 1 and No. 2. Standard value: 0.3 − 80 Ω [at 20°C (68°F)] Q: Is the measured resistance between 0.3 and 80 ohms [at 20 °C (68°F)]? YES : Go to Step 3. STEP 3. Check the continuity at ECM harness side side. (2) Measure the continuity between terminals No. 71, No. 83 and ground. • Should be less than 2 ohms. Q: Does continuity exist? YES : Go to Step 4. connector for damage, and repair or replace as . If intermediate connector is in good condition, repair harness wire between ECM AK700254 6 1 2 3 4 5 AB Throttle actuator AK700277 82 81 80 79 78 77 76 75 74 73 72 71 94 93 92 91 90 89 88 87 86 85 84 83 99 98 97 96 95 100 101 102 103 104 105 106 112 113 114 109 108 107 110 111 115 116 117 118 B-11 harness connector: AB |