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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L> 13A-113 DTC SET CONDITIONS Logic Flow Chart . Check Conditions • 2 seconds or more have passed since the staring sequence was completed. Judgement Criteria • Intake air temperature sensor output voltage has continued to be 0.2 volt or lower [corresponding °C (239°F) or higher] for 2 seconds. . OBD-ll DRIVE CYCLE PATTERN − OBD-ll Drive Cycle − Procedure 6 . . TROUBLESHOOTING HINTS (The most likely • Intake air temperature sensor failed. • Shorted intake air temperature sensor circuit, or connector damage. • ECM failed. <M/T> • PCM failed. <A/T> DIAGNOSIS Required Special Tools: • MB991958 (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991911: Main Harness B START OUTPUT VOLTAGE < 0.2V END NO NO NO YES YES YES MALFUNCTION GOOD CONTINUOUS FAILURE FOR 2secs OUTPUT VOLTAGE > 4.6V MONITORING CONDITIONS NO YES AK301424 |