XTOOL KC501 Manual: Update & How to add new key

The user manual of XTOOL KC501 key & chip programmer:

Part 1: How to update XTOOL KC501?

Part 2: How to use XTOOL KC501? ( How to add a key with  X100 PAD3 )

Part 1: How to update XTOOL KC501?

Visit the official website http://www.xtooltech.com/

Select [Supports]-> [Download Upgrade Tool]-> [KC501]


			XTOOL KC501 Manual: Update & How to add new key

Then it will download automatically.

It’s easy to install, but please remember to disable the anti-virus software before installation, otherwise it cannot install successfully.

When installation is complete, connect KC501 with computer, and then run KC501 application

Click on [Update] to operate.


You also can set language (English or Chinese) in the [Settings] option


			XTOOL KC501 Manual: Update & How to add new key

Part 2: How to use XTOOL KC501?

1.Read Remote Frequency & Transponder ID & Key Chip Type

Device need: XTOOL X100 PAD Elite + KC501+ original car key

Connect XTOOL KC501 with power supply via 5V DC power or 12DC power


			XTOOL KC501 Manual: Update & How to add new key


			XTOOL KC501 Manual: Update & How to add new key

Method 1: connect X100 PAD Elite with xtool KC501 via USB cable

The left button “FR” on the KC501 is for reading key remote frequency

The right button “TR” on the KC501 is for reading transponder ID and chip type

1).Read Remote Frequency:

Place the key close to the transponder area

Press the “FR” button


Read out the frequency of the key successfully


			XTOOL KC501 Manual: Update & How to add new key

2).Read transponder ID and chip type

Place the key to the KC501 key slot

Press the “TR” button

Read out the key chip type and transponder ID successfully


			XTOOL KC501 Manual: Update & How to add new key

Note: The operation steps are same as using 12DC power supply.

2.Add a new key for Mercedes-Benz via OBD

Device need: XTOOL X100 PAD Elite + KC501+ One original key+ one blank key

Step 1: Read EIS info

Connect X100 Pad3 with WiFi firstly

Select [Immobilization] -> [BENZ] -> [Infrared key system] -> [Add Key]


			XTOOL KC501 Manual: Update & How to add new key

Pay attention to the instruction of Add key on the screen

Then complete the following steps:

Connect KC501 to X100 Pad Elite


			XTOOL KC501 Manual: Update & How to add new key

Insert the original car key into the EIS


			XTOOL KC501 Manual: Update & How to add new key

Wait for 5 seconds, and then remove the key

Choose the communication method with EIS

Select [Read via OBD] -> [Automatic Identify]


			XTOOL KC501 Manual: Update & How to add new key


			XTOOL KC501 Manual: Update & How to add new key

Read out the EIS info


			XTOOL KC501 Manual: Update & How to add new key

Step 2: Get password from the programmed car key

Insert the same original car key into the lock again

Wait for 5 seconds, and then remove the key

Insert the same original car key into the infrared key jack of KC501


			XTOOL KC501 Manual: Update & How to add new key

Collecting data…

Wait for about 5-15 minutes until the data collection is succeed

Insert the programmed key into EIS (without turning on the ignition switch)

Wait for 30 seconds, put it out and reinsert it

The programmed key may need to be plugged and unplugged many times to start the car normally.

Obtain the password


			XTOOL KC501 Manual: Update & How to add new key

Step 3: Generate the key file

Select any one unused key to generate


			XTOOL KC501 Manual: Update & How to add new key

Insert a new key into KC501 infrared key slot

Key file has been written into the new key


			XTOOL KC501 Manual: Update & How to add new key

Finally, use two keys to start the car separately and test the remote