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For Android: 4.3	Guide: J1939 OBD Code Reader cheats tutorial
When updated: 2023-11-12	Star Rating: 1.3333334
Name: J1939 OBD Code Reader hack for android	Extension: Apk
Author: CHINH LUONG QUOC	File Name: com.obdii_lqc.android.j1939codereader.proversion
Current Version: 1.2.8	User Rating: Everyone
Downloads: 500-510	Version: mod, apk, unlock
System: Android	Type: Education

 

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About the application:

Ver 1.2.8 J1939 Code Reader For Android device Mobile and Tablet Requirement: 1. The car must be J1939 CAN compliant to use the app 2. A Bluetooth Adapter ELM327 or compatible 3. Most trucks in north America use the 9-pins Deutsch connector, so they need A cable adapter (OBDII Female 16 pins to SAE J1939 Deutsch 9 pins). Another trucks like Volvo trucks or Mack trucks (For 2013 and newer) use the normal OBDII J1962 16-pins connector so they don't need an adapter cable. 4. The bluetooth device on the phone(Tablet) must be enabled and paired with the bluetooth ELM327 adapter (ELM327 adapter) 5. Android device OS from ver 4.03 or newer This is the cost effective solution. Just with a cheap Bluetooth ELM327 adapter and an adapter cable (OBDII 16 Pins to J1939 9 Pins Deutsch) you already have complete hardware to create connection between your Android device device and the Vehicle's data link port. These hardwares can be found online at websites Amazon, eBay or elsewhere. Features: * OBDII comunication protocol : SAE J1939 CAN 29bit/250kb * Reads/Clears public active (or previously active) fault codes (DTCs) * Views some engine sensor live data * Captures live CAN bus stream and makes snapshot for stream. After snapshot is created each data row (frame) in snapshot can be lookup by click on the data row * PGN/SPN Lookup function: Uses SQLite database with number of above 3000 standard SAE PGNs (Parameter Group Number) and SPNs (Suspect Parameter Number) * Stores the latest fault code data for later use (View) * Unit of Measure : Supports 4 Unit Systems - Metric, USA, Imperial, Latin America. * Supports class 5-8 trucks manufactured from 2004 How to use: Once you have the bluetooth ELM327 adapter connected to the vehicle's data link port via adapter cable and ignition switch is on, you can connect to the vehicle's system computer by pulling down the option menu and choose item "Connect to ELM327 Adapter", a dialog window will appears and shows a list of paired devices (one or more devices in the list), each paired device has two info as following: Name of paired bluetooth device (for example: obdII) Max address (for example: 77:A6:43:E4:67:F2) The Max address is used to distinguish two or more bluetooth adapters with the same name. You must select your bluetooth ELM327 device by choose the correct it's name (or it's max address) in the list and click on the item, then the apk starts the connecting process under J1939 protocol. If the process finished successfully, the notification "Connected to Adapter (ELM327)" will appear on the status bar. If the process was failed you can test it some times (we assume that the bluetooth OBD-II adapter is working well) When you only use the lookup function you do not need the above connection step Now you are ready to use all functions of Apk like reads out fault codes or Clears them if need, lookup PGNs or views engine live data ... Note: One Fault Code in J1939 standard is created up of four (4) independent fields as follows: Field Description, Abbreviation, Field Width (Bits), Range 1.Suspect Parameter Number (SPN) 19 (0-524288) 2.Failure Mode Identifier FMI 5 (0-31) 3.Occurrence Count OC 7 (0-127) 4.SPN Conversion Way CM 1 (0-1) Calculating SPN values = (data[3]*16777216.0 + data[2]*65536.0 + data[1]*256.0 + data[0]*1.0)*scale + offset Where data[0] ...data[3] are 4 bytes data of SPN returned using this data and tutorial in lookup to determine SPN calculating components like: - data length (in bit) - begin byte position - begin bit 1 (in begin byte) - begin bit 2 (in end byte) - scale - offset - unit of measure

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