博文

How to Do Smart Key Matching with Launch X431 IMMO Plus/Elite?

已有 563 次阅读2023-5-8 21:02 分享到微信

This post will show you how to use Launch X431 IMMO Plus/X431 IMMO Elite to do smart key matching on the compatible vehicles.

X431 IMMO Elite/ IMMO Plus with “IMMO” menu function in device can perform the key matching function for Ford, GM, Mercedes-Benz, BMW, Volkswagen Audi, Peugeot Citroen, Porsche, Land Rover Jaguar, Honda, Toyota, Nissan, Hyundai, Kia, Great Wall Motor, Chery, Changan Automobile, JAC Passenger Cars, Wuling Baojun, and BYD, etc.

The IMMO function enables you to perform the anti-theft key matching function, so that the immobilizer control system on the car identifies and authorizes remote control keys to normally use the car.

It needs to be performed in the following cases:

The ignition switch key, ignition switch, combined instrument panel, ECU, BCM, or remote control battery is replaced.

X431 IMMO Plus/Elite and vehicle connection:

1).For most vehicles, just use the included diagnostic cable to connect the VCI to the vehicle’s DLC port.

2).For other vehicles (including but not limited to the Mercedes Benz, Volkswagen, BMW and Porsche), the X-PROG 3 is required.

A: DB15 to OBD16 diagnostic cable

B: Main diagnostic cable included with the X-PROG 3 immobilizer programmer.

Here takes Porsche Cayenne and Volvo as examples.

Case 1: Porsche Cayenne 2011-2017 key matching with X431 IMMO Plus/Elite

Menu path:

IMMO>> Porsche>> Anti-Theft Key Matching>> CAYENNE>> 2011-2017

Follow the connection diagram to connect to the G3 immobilizer programmer

Then perform the three steps below in sequence.

Step 1. Read immobilizer data

Step 2. Generate dealer keys

Step 3. Learn keys

Select Read immobilizer data>> 5M48H

Click “View the wiring diagram” to connect the Porsche ECU and Launch X431 X-Prog3 programmer

Click “Back up EEPROM data” to read and save the original EEPROM data

Then select “Generate dealer keys”

Place the new key into XProg3 programmer, and the programmer will generate the key for the read file

Select eep.bin just saved, and select one key without generation

Confirm the new key is plugged into the G3 programmer and continue to generate

Generate the key successfully

After that, select “Learn keys”

All keys including the keys of the original car will be re-matched, just click OK to continue.

Then turn on the double-flash lamp and click OK

Select the eep.bin file again

Input the number of keys (2) to matched

Insert the 1 key and turn on the ignition switch

Insert the 2 key and turn on the ignition switch

Matching completed

The original key and new key are ready for use.

Case 2: Volvo S40 2004-2012 key matching with X431 IMMO Elite/IMMO Plus

Menu path:

Select IMMO>> VOLVO>> VOLVO newest version>> Anti-Theft Key Matching>> S40>> 2004-2012>> Toothless knob key

The following functions are supported:

Operation Guide
Key added
All keys lost
Key deleted
Read CEM security data (disassembling and reading)
Key Remote Control Information
CEM cloning

With the “Operation Guide” in the X431 IMMO Plus key programmer/Elite, you can perform the matching toothless knob keys easily.

1.Read the operation instruction and precautions of this operation guide

2.Remove the original CEM module, connect X431 X-PROG3 immobilizer programmer according to the wiring method provided by this operation guide, read the data of corresponding module through the function of [Read CEM security data (disassembling and reading)]

3.Before perform [Key Added] or [Keys All Lost] function, please perform [Key remote control information] function, save vehicle’s original key remote control information

4.Perform [[Key Added] or [Keys All Lost] function, it will prompt to load the related data read in step 2 during the function, please follow the steps.

Click “Read CEM security data (disassembling and reading)”

Confirm the prompts on screen and click “YES” to continue

Select the corresponding module chip to read data

Read EEPROM data successfully, and input a filename to save it