P.13A-6 - LIL EVO

MULTIPORT FUEL INJECTION (MFI)13A-13MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS16-PIN16-PINMB991824MB991827MB991502AK204070ABMB991911AK204071ABCAUTIONTo prevent damage to scan tool MB991502 or MB991958,always turn the ignition switch to the "LOCK" (OFF) positionbefore connecting or disconnecting scan toolMB991502 or MB991958.NOTE: When mode II is selected with scan tool MB991502(MUT-II) or MB991958 (MUT-III sub assembly), the MalfunctionIndicator Lamp (SERVICE ENGINE SOON) will light when theengine control module (ECM) first detects the trouble (Note thatthis is only for emission-related trouble). At the same time, therelevant diagnostic trouble codes will be registered. In respectto the comprehensive component electrical faults (opens/shorts), the time for the diagnostic trouble code to be registeredafter the fault occurrence is four seconds → one second.Therefore, the confirmation of the trouble symptom and theconfirmation after completing repairs can be reduced. To returnto the normal mode I after mode II has been selected once, theignition switch must be turned "OFF" once or mode I must bereselected with scan tool MB991502 (MUT-II) or MB991958(MUT-III sub assembly). The diagnostic trouble code, systemreadiness test status and freeze frame data, etc., will be erasedwhen mode I is returned to, so record these before returning tomode 1.1. Connect scan tool MB991502 or MB991958 to the data linkconnector.2. Turn the ignition switch to the "ON" position.3. Change the diagnostic test mode of the ECM toDIAGNOSTIC TEST MODE II (INCREASED SENSITIVITY).4. Road test the vehicle.5. Read the diagnostic trouble code and repair themalfunctioning part.6. Turn the ignition switch to the "LOCK" (OFF) position.7. Disconnect scan tool MB991502 or MB991958 from the datalink connector.INSPECTION USING SCAN TOOL MB991502 orMB991958, DATA LIST AND ACTUATOR TESTING.Required Special Tool:• MB991502: Scan Tool (MUT-II)TSB Revision