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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-1008 STEP 6. Using scan tool MB991958, read the diagnostic again. (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : Retry the troubleshooting. DTC U1110: A/C-ECU TIME-OUT CAUTION • If the PCM output the DTC U1110, make sure to diagnose the CAN bus line. • Before replacing the ECU, make sure that the communication circuit is operating normally. . DTC SET CONDITIONS Check Conditions • Battery positive voltage is 10 volts or higher. • Engine is not cranked, or at least 3 seconds or more have passed since engine was cranked. Judgement Criteria • Unable to receive A/C-ECU signals through the CAN bus line. . COMMENT Current Trouble • Some of the possible causes are a harness or connector damage between the PCM and the Past Trouble • Proceed to troubleshoot based on a harness or connector damage on the CAN bus line between − How to Cope with Intermittent Malfunctions ). AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 |