![bFlash Logo RGB-02-2.png]](https://faq.bflash.eu/hs-fs/hubfs/bFlash%20Logo%20RGB-02-2.png?height=50&name=bFlash%20Logo%20RGB-02-2.png)
Errors
Find quick solutions to common problems encountered with the Bosch EDC17C46 control unit. Click a tile to jump to the detailed explanation.
Clone MEDC17
This error occurs during cloning and requires manually copying specific data blocks from the donor file to the backup.
View Solution →P0606
Indicates a problem with the ECU's internal torque monitoring system, often related to performance software modifications.
View Solution →Checksum is invalid. error code : 0x00000001
Indicates an incorrect checksum, often due to a prior modification, but can usually be ignored during identification.
View Solution →[ISOTP API] No data to read from isotp stack...
A communication failure during data transfer, typically related to gateway issues when using the OBD protocol.
View Solution →RBP TesterPresent Rx error
This OBD error, if combined with Bench/Boot failures, suggests a critical ECU hardware fault requiring replacement.
View Solution →[File download] Error during file download
Occurs during OBD operations when the required original file is not available on the bFlash server.
View Solution →Concerns vehicles from
Clone MEDC17
Method: Bench / Boot
Issue: The user is attempting to clone the ECU content but faces an issue requiring a manual data transfer.
- Copy the data from address range 0x14000-0x1FFFF from the donor file to your original backup file.
- Copy the last 16 bytes of the file from the donor file to your original backup file.
- Be aware that in some cases, additional patches may be necessary to complete the clone.
To understand more
Cloning a modern ECU like the EDC17C46 involves more than a simple file copy. Critical data, including immobilizer and component protection information, is stored in specific memory locations. This manual process ensures these key segments are transferred correctly from the donor ECU's data to the original backup, allowing the target ECU to function in the new vehicle.
P0606
Method: Not specified
Issue: The ECU has registered the fault code P0606, which points to an internal processor or torque monitoring malfunction.
- The P0606 error code often appears after a modification that affects the ECU's internal torque calculations.
- First, try writing the original (stock) file back to the ECU to see if the error disappears.
- If the issue persists or you need to apply a modification, the file may require a specific patch. Please Contact our technical support with your original and modified files.
To understand more
The P0606 fault is a generic control module processor error. In tuning, it often relates to 'Torque Monitoring'. The ECU constantly cross-references expected engine torque with actual values as a safety measure. If a modification causes a mismatch beyond the allowed tolerance, this error is triggered to prevent potential engine or drivetrain damage.
Checksum is invalid. error code : 0x00000001
Method: Bench
Issue: bFlash reports an invalid checksum when trying to read or identify the ECU.
- For most BOSCH MEDC17 ECUs, this warning can be safely ignored. You can typically proceed with the programming operation.
- The error usually means the ECU was previously tuned with another tool that did not correct all internal checksums.
- If you receive the same error during the writing process, do not proceed and Contact our technical support immediately.
To understand more
A checksum is a value used to verify the integrity of a file. The ECU has multiple checksums that must be correct for it to accept the software. While bFlash corrects the main checksums, lingering inconsistencies from other tools can trigger this benign warning during identification.
[ISOTP API] No data to read from isotp stack A... : UDS TransferData RX error.
Method: OBD / Recovery: Bench
Issue: A data transfer error occurred during an OBD communication attempt, preventing the read/write process.
- This error during an OBD operation is often caused by a vehicle's gateway module interfering with the data transfer.
- Please Contact our technical support and request the activation of Slow Mode Programming to resolve this.
To understand more
The ISOTP (ISO 15765-2) protocol manages data packet transmission over the CAN bus. This error indicates a failure in receiving data (RX error), often because the vehicle's central gateway is too busy to handle the standard programming speed. Slow Mode Programming reduces the data rate, allowing the gateway to process the packets correctly.
RBP TesterPresent Rx error
Method: OBD / Recovery: Bench/Boot
Issue: An OBD communication error has occurred, and other methods (Bench/Boot) are also failing to establish a connection.
- This error sequence indicates a severe problem with the ECU itself, not just the communication protocol.
- If you have already confirmed there is no communication in Bench or Boot mode, the ECU is likely damaged.
- The solution is to replace the physical ECU and clone the data from the original (if possible) to the new unit.
To understand more
The 'TesterPresent' command is a signal sent to keep the communication session with the ECU active. An RX error on this command means the ECU isn't responding. While this can be a wiring issue, failure to also communicate via direct methods like Bench or Boot points to a fundamental hardware failure within the control unit.
[File download] Error during file download
Method: OBD / Recovery: Bench
Issue: The bFlash software failed to download the required file from the server during an OBD operation.
- This means the specific software version of your ECU is not yet in the bFlash database for OBD.
- Perform a full BENCH read of the ECU to create a complete backup.
- Send the backup file to support@bflash.eu. We will add it to the server, enabling future OBD access.
To understand more
bFlash's OBD protocol often relies on a server-side database of original files. If your ECU's software version isn't on the server, the tool can't download the necessary data. Providing a Bench read allows us to add this unique software version to the database for you and all future users.