LAUNCH       X-431 V V4.0 User Manual 
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4.5.2 DLC location ................................................................................... 16 
4.5.3 Vehicle connection .......................................................................... 17 
4.6 COMMUNICATION SETUP........................................................................... 18 
4.7 DIAGNOSTIC TROUBLE CODES (DTCS) ...................................................... 18 
5 DIAGNOSIS................................................................................................... 21 
5.1 INTELLIGENT DIAGNOSIS ........................................................................... 21 
5.2 LOCAL DIAGNOSIS .................................................................................... 25 
5.2.1 Health Report (Quick Test) .............................................................. 27 
5.2.2 System Scan ................................................................................... 30 
5.2.3 System Selection ............................................................................ 30 
5.3 REMOTE DIAGNOSIS ................................................................................. 39 
5.3.1 Interface Layout .............................................................................. 40 
5.3.2 Add Friends ..................................................................................... 41 
5.3.3 Start Instant Messaging ................................................................... 43 
5.3.4 Launch Remote Diagnosis (Device-To-Device) ............................... 44 
5.3.5 Launch Remote Diagnosis (Device-To-PC) ..................................... 47 
5.4 DIAGNOSTIC HISTORY .............................................................................. 50 
6 SPECIAL (RESET) FUNCTION ..................................................................... 52 
6.1 OIL RESET SERVICE ................................................................................. 53 
6.2 ELECTRONIC PARKING BRAKE RESET........................................................ 53 
6.3 STEERING ANGLE CALIBRATION ................................................................ 54 
6.4 ABS BLEEDING ........................................................................................ 54 
6.5 TIRE PRESSURE MONITOR SYSTEM RESET ................................................ 54 
6.6 GEAR LEARNING ...................................................................................... 54 
6.7 IMMO SERVICE........................................................................................ 55 
6.8 INJECTOR CODING.................................................................................... 55 
6.9 BATTERY MAINTENANCE SYSTEM RESET................................................... 56 
6.10 DIESEL PARTICULATE FILTER (DPF) REGENERATION ............................... 56 
6.11 ELECTRONIC THROTTLE POSITION RESET ............................................... 56 
6.12 GEARBOX MATCHING ............................................................................. 57