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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-245 STEP 10. Check for short circuit to ground between YES : Replace the PCM. Then go to Step 20. STEP 11. Check the power supply voltage at crankshaft side. (2) Turn the ignition switch to the "ON" position. • Voltage should be battery positive voltage. (4) Turn the ignition switch to the "LOCK"(OFF) position. Q: Is the voltage normal? YES : Go to Step 13. STEP 12. Check connector A-21X at MFI relay for damage. YES : Repair harness wire between MFI relay connector A- 21X terminal 1 and crankshaft position sensor NO : Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection ( ). Then go to Step 20. AK000617 CONNECTOR:B-20 AD AK000280 CONNECTOR : C-40 PCM AV AKX01417AC 2 1 3 B-20 HARNESS AK000555AB CONNECTOR : A-21X MFI RELAY |