Launch X431 PAD V Perform Engine ECU Long Coding Online Guide

Launch X431 PAD V is an automotive diagnostic tool that supports advanced coding and programming. Here will mainly show you how to use it to perform the Engine ECU LONG CODING online.
launch x431 pad v

Learn something about ECU CODING function.

Every automobile actuator has a record code in ECU, which is the basis for automobile computer to mobilize their work. X431 PAD V is equipped with advanced ECU coding function for addressing the following issues:
1.After you change the bad actuators or certain parts, you need to use this function to make a new code and recognize the new actuators.
2.By changing the code with the ECU coding, it's easy to improve vehicle performance or stimulate high-end functions for the car.
3.ECU coding enables multiple car systems to recognize each other and then the actuators can start to work.
pad v ecu coding

Guide to do ECU coding online:
Car model: Audi A5 2014
From the Health Report of Audi V28.67 (newest version), you can see “P161200 Engine Control Module (ECM) -incorrect Coding” trouble code.

Read ECU Memory and there is a Long Coding “00000000000000000000” can be found.

Select Audi V28.67>> Menu>> Online Function>> Online Coding
It starts to download a file.
After that, select Single System Mode>> 01 Engine Control Module 1>> 1A2500322427010B2000 (Possible Code03)
Make sure the code is the one you want to modify
engine control module 1

The coding has been successfully carried out.

Confirm to clear the fault code and read the fault code again
launch padv clear fault code

Exit online programming
Back to Health Report, now there is no fault code anymore.
The fault memory has been cleared successfully, and the states of all systems are normal.

Alright, that’s the guide to performing online coding for Engine ECU with Launch X431 PAD 5.

Besides, X431 PAD 5 also can perform 16 kinds of special functions. Here are some special functions that have been tested: Register new ECM VIN, reset electric throttle relearn, EPS, calibrate CVT oil pressure, detective ESP- C15DE-ROAD test active, and calibrate Steering Angle Sensor.

Reference: Launch X431 PAD V Test Report: Perform Special Function on Different Cars

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