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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-241 CIRCUIT OPERATION • The crankshaft position sensor power is supplied • A 5-volt voltage is applied on the crankshaft TECHNICAL DESCRIPTION • The crankshaft position sensor detects the crank • When the engine is running, the crankshaft • The PCM checks whether pulse signal is input DTC SET CONDITIONS Check Conditions • Engine is being cranked. Judgment Criteria • Crankshaft position sensor output voltage has not Check Conditions, Judgment Criteria • Normal signal pattern has not been input for TROUBLESHOOTING HINTS (The most likely • Crankshaft position sensor failed. • Open or shorted crankshaft position sensor • PCM failed. DIAGNOSIS Required Special Tools AK000617 CONNECTOR:B-20 AD AK000555AB CONNECTOR : A-21X MFI RELAY AK000280 CONNECTOR : C-40 PCM AV |