SCT X4 Performance Programmer Instruction Manual
- June 9, 2024
- SCT
Table of Contents
SCT X4 Performance Programmer
SETUP
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Ensure vehicle is turned off and parked safely.
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Fully open the hood and ensure it is secured.
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Locate the ECU on the firewall on the passenger’s side of the vehicle (see green arrow below).
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Be sure to release the locking tab (green arrow below) before moving gray connector arm. Disconnect all 3 of the ECU connectors.
Note: You MUST disconnect ALL 3 connectors anytime you are installing or uninstalling your tune.
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Connect the ECU connector provided with the X4 to connection 1 on the ECU as show above and to the SCT Box.
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Connect the X4 to the SCT box using the OBDII cable,
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Connect the SCT box to the battery using the battery clamps provided. Battery Clamps Install: Red to positive, black to negative.
LOADING YOUR CUSTOM TUNE
- Be sure you have completed the setup steps on Page 1 & 2.
- On the X4 select PROGRAM VEHICLE. 3. Review and accept the STREET USE NOTICE.
- Select which Custom Tune file you want to program.
- If this is your first flash, you will see SAVING STOCK DATA. This is normal.
- The X4 will now program in the custom tune file. When complete, reconnect the ECU by disconnecting the battery clamps and reconnecting all 3 ECU connections.
RETURNING YOUR VEHICLE TO STOCK
Return to stock
- Be sure to have the device setup using the steps above.
- On the X4 select PROGRAM VEHICLE.
- Review and accept the Street Use Notice and press RETURN TO STOCK.
- Confirm Return to Stock.
- The X4 will now program in the stock file.
- When complete, reconnect the ECU.
LIVELINK GEN-II / ADVANTAGE III
To use LiveLink or Advantage III with the 2021-2022 F-150 please update to the current release version including any outstanding database update.
LIVELINK GEN-II: Version 2.9.4.0 or newer, including any outstanding
database updates.
ADVANTAGE 3: Version 3.4 Build 22305.0 or newer.
For technical assistance please go to www.scflash.com and click support.