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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-269 STEP 6. Check connector A-21X at MFI relay for damage. YES : Repair harness wire between MFI relay connector A- 21X terminal 1 and idle air control motor connector B- NO : Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection( ). Then go to Step 14. STEP 7. Check the power supply voltage at PCM connector ground by backprobing. • The voltage is 1V or lower for approximately 3 seconds, (3) Turn the ignition switch to the "LOCK"(OFF) position. Q: Is the voltage normal? YES : Go to Step 10. STEP 8. Check connector C-39 at PCM for damage. YES : Go to Step 9. Connector Inspection( ). Then go to Step 14. AK000555AB CONNECTOR : A-21X MFI RELAY AK000307 C-39 CONNECTOR 1 24 2 10 11 3 12 4 13 5 19 6 20 21 7 22 8 23 14 1516 17 30 18 31 AC AK000280 CONNECTOR : C-39 PCM AW |