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TROUBLESHOOTING MULTIPORT FUEL INJECTION (MFI) 13A-139 STEP 13. Measure output waveform at B-106 Use special tool test harness (MB991709) to con- Engine: Idling Transmission: Neutral Voltage between terminal No. 2 and earth. OK: Waveforms should be displayed on ), its maximum value should be 4.8 V or more, and its minimum Q: Is the check result normal? YES : Go to Step 9 . NO : Go to Step 14 . STEP 14. Connector check: B-17X engine control Q: Is the check result normal? YES : Go to Step 15 . NO : Repair. STEP 15. Check harness between B-106 (terminal Check power supply line for damage. Q: Is the check result normal? YES : Go to Step 16 . NO : Repair. AK300279 1 2 3 Harness side B-106 (B) AB Connector: B-106 AK300255 2 1 3 4 Relay box’s AB CONNECTOR: B-17X B-17X Harness side AK300279 1 2 3 Harness side B-106 (B) AB Connector: B-106 AK300255 2 1 3 4 Relay box’s AB CONNECTOR: B-17X B-17X Harness side |