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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE> 13B-996 OBD-II DRIVE CYCLE PATTERN Refer to Diagnostic Function − OBD-II Drive Cycle − Procedure 6 − Other Monitor . TROUBLESHOOTING HINTS (The most • PCM failed. DIAGNOSIS Required Special Tools: • MB991958: Scan tool (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: USB Cable • MB991910: Main Harness A STEP 1. Using scan tool MB991958, check data list item 25: CAUTION To prevent damage to scan tool MB991958, always turn the 25, Barometric Pressure Sensor. • When altitude is 0 m (0 foot), 101 kPa (29.8 In.Hg). • When altitude is 600 m (1,969 feet), 95 kPa (28.1 In.Hg). • When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 In.Hg). • When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 In.Hg). (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use − How to Cope with Intermittent Malfunctions . NO : Replace the PCM, then go to Step 2. STEP 2. Test the OBD-II drive cycle. Diagnostic Function − OBD-II Drive Cycle − Procedure 6 − (2) Check the diagnostic trouble code (DTC). YES : Retry the troubleshooting. AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 |