Mercedes EDC17C66 ECU Write & Checksum: PCMFlash vs Foxflash

PCMFlash vs Foxflash which to read and write Mercedes EDC17C66 ECU?

Model example:

Mercedes V-Class 2.2CDI 2015

PCMFlash:

Read over OBD ok, Write via OBD ok, checksum no.

Foxflash:

Bench read ok, bench write ok, checksum by foxflash.

Check your cars for previous ecu change before doing anything, it can cost you couple of hours to resolve a simple issue. The car was tuned from someone else, and it had a different checksum, when i did a read i forgot to uncheck the checksum check which after read couldn’t do a correct checksum and that’s why the car didn’t want to start. Later i tried to flash ECU with Launch X431 PAD V with original file, but still the same. After that i flashed the file i took out from the car, took out the ECU and did it on bech with Foxflash and corrected the checksum with Winols for the whole file. Which resolved the problem.

How to Solve PADFlash "Connection to Tool Lost" Issue

Problem:
Failed to start PADflash software after activation. Win10 64bit system.
Error 1: Connection to tool lost.

Error 2:
Device Init Error.

Solution:

1. Disable USB selective suspend/power-saving for all USB ports.
This turns off USB sleep mode to prevent devices from disconnecting.
2. Enable Administrator Mode."
(Activates standard administrator privileges for the account.)
3. Grant the computer Super Administrator (Elevated) access.
Provides highest system-level permissions (Super Admin).

If still not working, contact www.iecutool.eu customer service for help.

Read also:

http://www.pcmtuner.org/padflash-driver-not-found-solution/

How to Solve Foxflash Cannot Connect to VL300 Issue

Problem:

Have a problem connecting in bench mode with the Audi A4 TEMIC VL300 CVT transmission control unit.
Foxflash software cannot identify or read the unit.
Attaching screenshots.

Solution:

Foxflash will read and write Temic VL300 gearbox TCU in boot mode.

Don’t do it on bench mode. Don’t use Godiag GT107 gearbox adapter.

Follow foxflash instructions to read VL300 TCU in boot.

Instruction:

Drill a hole in the cover underneath:

DO NOT EXCEED 5 mm IN DEPTH.

To connect to the control unit use:

– Multifunction cable

– Round Pin connectors

– Needle

IMPORTANT:

SEAL THE HOLE WITH TWO-COMPONENT GLUE AFTER COMPLETION OF THE WORK.

Read also:

http://www.pcmtuner.org/foxflash-read-and-write-audi-vl300-gearbox-success/

www.iecutool.eu

Copy GM BCM 13589056 Using OBDSTAR DC706 Tool

This guide demonstrates how to clone a Vauxhall/Opel GM BCM (Body Control Module) with part number 13589056 using OBDSTAR DC706, including immobilizer data transfer and PIN code extraction. This process is essential when replacing a faulty BCM while retaining original vehicle security data.

Tools Required

• OBDStar DC706 (or X300 Classic G3)
• P004 adapter
• 12V power supply (for bench testing)
• Replacement BCM (same part number)

Step 1: Prepare the BCMs

Identify Modules:

• Locate the original (donor) BCM and the new replacement BCM (ensure part numbers match).
• Verify both are Continental-branded modules (common for GM/Opel).

Pinout Setup:

Select GM BCM Continental 70F3469 +95160 option.

• Refer to the wiring diagram for correct connections:
• Pin 1: Ground (GND)
• Pins 4 & 5: 12V Power
• Pins 23 & 24: CAN Low/ CAN High

Step 2: Read Data from the Original BCM

Power Up:

• Connect the original BCM to the OBDStar DC706 tool using the wiring harness.
• Apply 12V power to Pins 4/5 and ground to Pin 1.

Extract Data:

• Open the OBDStar software, navigate to GM > Body Control.
• Select "Read EEPROM" and save eeprom data.
• Select "Read Flash" to back up the flash data.
• Retrieve the PIN code (e.g., 0427 in this case) and note it down.

Step 3: Write Data to the New BCM

Switch Modules:

• Disconnect the original BCM and connect the new BCM using the same wiring.

Transfer Data:

• In OBDStar, select "Write EEPROM" and load the saved backup file.
• Select "Write Flash" to transfer the firmware.
• Note: Skip backup for brand-new modules (no existing data to preserve).

Verify PIN Code:

• Read the PIN code from the new BCM to confirm it matches the original

Step 4: Final Checks

• Disconnect all wiring and power.
• Test the cloned BCM in the vehicle:
• Ensure the immobilizer recognizes the keys.
• Check for fault codes (clear if necessary).

Done.

www.iecutool.eu

AutoTuner Update Adds BMW EDC17C06/ C41/ C50/ CP45

New AutoTuner Protocol Update!

We continue to perfect our OBD protocols, this time for Alpina, BMW, and Mini vehicles equipped with Bosch EDC17C06, EDC17C41, EDC17C50, EDC17CP02, EDC17CP09, and EDC17CP45 ECUs, exclusively for E-Series.

This protocol update introduces our automatic patch detection, drastically reducing the writing time once the ECU has been patched: from around 6 minutes down to just 1 minute!

We have also added a Back to Stock function, allowing you to restore the vehicle to its original state in just one click, using the original data retrieved directly from our server. This function provides additional autonomy for "Slave" users.

Key Features of This Release:
Type: Engine Contol Unit (ECU).
Readout: OBD VR.
MCU: TC1766, TC1796, TC1797.
Write time with unlocking: 6min.
Write time once unlocked: 1min.
Supports Checksum correction.