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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-649 STEP 9. Check for open circuit and short circuit to ground a. Idle air control motor connector B-34 (terminal No. 1) and ECM connector C-49 (terminal No. 4) <M/T> or PCM con- b. Idle air control motor connector B-34 (terminal No. 3) and ECM connector C-49 (terminal No. 17) <M/T> or PCM con- c. Idle air control motor connector B-34 (terminal No. 4) and ECM connector C-49 (terminal No. 5) <M/T> or PCM con- d. Idle air control motor connector B-34 (terminal No. 6) and ECM connector C-49 (terminal No. 18) <M/T> or PCM con- Q: Is the harness wire in good condition? YES : Replace the ECM or PCM. Then go to Step 14. AK300408 1 2 3 4 5 6 CONNECTOR: B-34 AB B-34 (B) HARNESS CONNECTOR: AK300413 1 14 4 19 5 22 6 17 8 15 9 18 7 20 16 2 21 23 26 24 25 3 10 11 12 13 CONNECTOR: C-49 <M/T> C-49 (G) AB HARNESS CONNECTOR: AK300414 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 19 20 30 21 22 23 24 25 26 27 28 29 31 32 33 34 35 1 10 C-50 (GR) CONNECTOR: C-50 <A/T> AB HARNESS CONNECTOR: |