Ford Smart Junction Box (BCM) Install

Installation Instructions for Ford BCM Cloning

THIS MUST BE COMPLETED BEFORE STARTING VEHICLE. 

Important Note: Perform BCM Self-Test Using Scan Tool***

Tools and Equipment Needed:

  • Replacement (Cloned) BCM

  • OBD-II Scan Tool (such as Forscan or Ford IDS)

  • Basic hand tools (e.g., screwdrivers, wrenches, etc.)

  • Vehicle's OBD-II adapter

Installation Steps:

Step 1: Safety First

  1. Disconnect the vehicle’s battery:

    • Start by turning off the vehicle and disconnecting the negative terminal from the battery to prevent any electrical shocks or shorts during installation.

Step 2: Remove the Old BCM

  1. Locate the BCM:

    • The location of the BCM varies by model, but typically it is located under the dashboard, in the driver’s footwell area, or near the fuse box. Check your vehicle’s manual for exact location.

  2. Remove any panels or covers:

    • Using basic hand tools, carefully remove any dashboard panels or covers that may block access to the BCM.

  3. Disconnect the wiring:

    • Disconnect the electrical connectors from the BCM. This typically involves releasing clips or screws that hold the connectors in place. Be cautious to avoid damaging the connectors or wiring.

  4. Remove the BCM:

    • Once all connectors are safely detached, remove the old BCM from its mount or housing.

Step 3: Install the New (Cloned) BCM

  1. Position the New BCM:

    • Install the cloned BCM in the same location and orientation as the original. Ensure that it is properly seated and aligned with the mounting brackets.

  2. Reconnect the wiring:

    • Attach the electrical connectors to the new BCM, ensuring that each connector is securely plugged in and properly locked in place.

  3. Reinstall any panels:

    • If you removed any panels or covers to access the BCM, reattach them in the reverse order.

Step 4: Reconnect the Battery

  1. Reconnect the battery:

    • After ensuring that the new BCM is securely installed, reconnect the negative terminal of the vehicle’s battery. Tighten the connection firmly.

Step 5: Perform BCM Self-Test Using Scan Tool

  1. Connect your scan tool:

    • Use an OBD-II scan tool such as Forscan or Ford IDS. Plug the scan tool into your vehicle’s OBD-II port (usually located under the dashboard near the driver’s side).

  2. Run a self-test:

    • Use the scan tool to initiate a self-test on the newly installed BCM. This will help you check for any immediate errors or malfunctions that could arise from the installation.

    • Follow the instructions on your scan tool to run the self-test. The scan tool should indicate if the BCM is properly communicating with the vehicle’s systems or if there are any issues.

  3. Check for error codes:

    • If the scan tool identifies any errors or issues during the self-test, note down the Diagnostic Trouble Codes (DTCs). These codes will help you understand if further troubleshooting is needed.

Step 6: Clear Codes and Reset the BCM

  1. Clear any stored DTCs:

    • After the self-test, use the scan tool to clear any stored Diagnostic Trouble Codes (DTCs). This is a crucial step to ensure that any error codes from the previous BCM are erased and do not affect the operation of the new BCM.

    • Follow the scan tool instructions to clear the codes. Once cleared, the system should reset the BCM’s configuration.

Step 7: Verify BCM Operation

  1. Check for functionality:

    • Start the vehicle and verify that all systems controlled by the BCM are working correctly. These may include features like power windows, door locks, lighting, and the ignition system.

    • Test each system to ensure they are operating as expected (e.g., check that the headlights, interior lights, and wipers function properly).

Step 8: Test Drive and Final Check

  1. Take a short test drive:

    • After verifying that all functions work correctly, take the vehicle for a short test drive to confirm that the BCM is operating as expected. Monitor for any abnormal behavior or warning lights.

  2. Re-scan if necessary:

    • If any issues or warning lights persist after the test drive, return to your scan tool and perform another scan to check for any residual DTCs or issues. Follow any necessary troubleshooting steps to resolve these.

Important Notes:

  • Clearing DTCs: Clearing DTCs using a scan tool is essential. Leaving unresolved codes can lead to improper vehicle operation or malfunction of BCM-controlled components.

  • Scan Tool Use: A compatible OBD-II scan tool (such as Forscan or Ford IDS) is required for performing the BCM self-test, clearing codes, and ensuring proper BCM operation.

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