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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-387 STEP 1. Using scan tool MB991502, read the A/T CAUTION To prevent damage to scan tool MB991502, always turn the Q: Is the A/T-DTC is output? YES : Refer to GROUP 23A, Automatic Transaxle Diagnosis − Diagnostic Trouble Code Chart ( NO : If DTC P0725 is output again after the MFI-DTC has been erased, replace the PCM. Then check that the DTC P0740: Torque Converter Clutch System Malfunction TECHNICAL DESCRIPTION • When a malfunction of the torque converter DTC SET CONDITIONS Check Conditions, Judgment Criteria • Failed signal of the torque converter clutch or its TROUBLESHOOTING HINTS (The most likely • Torque converter clutch or its related system • Open or shorted torque converter clutch or its • PCM failed. DIAGNOSIS Required Special Tools AKX01177 16 PIN MB991502 AB |