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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-729 DTC SET CONDITIONS Check Conditions • Battery positive voltage is between 10 and 16.5 volts. Judgement Criterion • Unable to receive TCM signals through the CAN bus line 4 seconds. . OBD-II DRIVE CYCLE PATTERN None. . TROUBLESHOOTING HINTS (The most • CAN line harness damage or connector damage. DIAGNOSIS Required Special Tools: • MB991958: Scan tool (M.U.T.-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A AK604369 Start Yes Yes Yes No No No Continuous failure for specified time Malfunction End Good Monitoring Communication status fails |