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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-607 . CIRCUIT OPERATION • A 5-volt voltage is supplied to the battery current sensor power terminal (terminal No. 1) from the • A voltage that is proportional to the battery cur- rent is sent to the ECM (terminal No. 100) from . TECHNICAL DESCRIPTION • The battery current sensor outputs a voltage which corresponds to the battery current. • The ECM checks whether this voltage is within a specified range. . DESCRIPTIONS OF MONITOR METHODS Battery current sensor output voltage is out of speci- . DTC SET CONDITIONS Check Condition • Ignition switch is "ON" position Judgement Criterion • The battery current sensor output voltage is less than 0.2 V for 2 seconds. or • The battery current sensor output voltage is more than 4.8 V for 2 seconds. . TROUBLESHOOTING HINTS (The most • Battery current sensor failed. • Open or shorted battery current sensor circuit, harness damage or connector damage. • ECM failed. DIAGNOSIS Required Special Tools: • MB991958: Scan Tool (M.U.T.-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A • MB992110: Power Plant ECU Check Harness STEP 1. Check harness connector A-65 at battery current YES : Go to Step 2. Connector Inspection . Then go to Step 13. AK900202 AF A-65 (GR) Connector: A-65 Battery AK704097AB Connector: B-11 B-11 (GR) |