CGDI CG100X Repair Ford R7F7010643 (Encrypted) Airbag

CGDI CG100X Programmer can support Ford LV4T-14B321-XA R7F701A033 (encrypted), Ford RJ7T-14B321-AB R7F7010643 (encrypted), Ford LK9T-14B321-AA R7F7010643 (encrypted), and Ford MZ8T-14B321-AA R7F7010643 (encrypted) airbag repair. Ensure the CG100X software is V1.6.2.1 or higher. Use CG70 Airbag Reset Tool to diagnose the airbag module and CG100X to repair the airbag.

For example:

  • Vehicle: Ford Focus 2023
  • Restraint Control Module (RCM) Part Number: RJ7T-14B321-AB
  • Processor: Renesas R7F7010643 (Encrypted)

Step 1: Diagnose Airbag Module by CGDI CG70

1.Read SRS Fault Codes

Use the CG70 airbag reset tool or a diagnostic scanner.

Open CG70 software, select Ford and the appropriate part number. The software will display the wiring diagram for reference

Follow the diagram to connect CG70 tool to the airbag module. Ensure connections for GND, CANL, CANH, and 12V cables are correctly established.

Successfully read the fault code

2.Identify the Crash Data Issue

If fault code B1193 – Crash Event Storage Full and Locked is detected, it confirms that crash data is stored in the airbag control module (ACM/SDM).

This fault cannot be cleared using diagnostic tools, as it gives the error: “Cannot execute routine.”

Solution: Use the CG100X programmer to erase the crash data.

Step 2: Repair Airbag with CGDI CG100X

1.Understand Compatibility

CG70 cannot handle the encrypted R7F7010643 processor, but the CG100X can decrypt and erase the crash data.

Note: OBDSTAR P50 can diagnose this issue but cannot erase the crash.

2.Prepare the Setup

Open CG100X software, select Ford, and locate the part number. The software will provide the required wiring diagram

Follow the wiring instructions carefully

3.Wiring Requirements

Remove one capacitor from the airbag module’s mainboard.

Use the following tools:

Important: Be cautious when desoldering the capacitor as it is very small.

4.Connect the Module

Connect the SRS module and CG100X using the D1 Adapter

Ensure the 5.10 kΩ resistor does not touch the circuit board to prevent short circuits or communication errors.

5.Decrypt and Read Data

Begin decrypting the chip.

Read the chip’s DFlash and PFlash, and then save the data.

6.Repair Airbag Data

Confirm to repair the airbag data when prompted.

Write the repaired data back to the chip

Successfully erase the crash data and repair the SRS module now.

7.Recover Airbag Module

Disconnect all wires from the CG100X Programmer.

Re-solder the capacitor back onto the airbag module’s mainboard.

Step 3: Verify the Repair by CG70

Reconnect the repaired airbag module to the CGDI CG70 airbag reset tool.

Read the fault codes to confirm no crash data is stored.

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Author: admin