Here is the tip to read and write the encrypted Bosch MD1CS089 ECU, typically used in 2021+ JMC and Isuzu trucks.
Device used: EngineDanc X5 heavy duty ECU flasher.
1. Need to unlock ECU.
Remote Unlock ECU by EngineDance engineer. $100 to unlock per ECU.
How to unlock encrypted Bosch MD1 ECUs with EngineDance?
1. Provide photos of the ECU.
2. Provide ECU version information read by the X5 device.
3. Provide the serial number of the X5 device.
4. Schedule a remote unlock time (confirm with obdii365.com).
5. Refer to the connection diagram for the connection method between the ECU and X5.
6. Install the latest version of ToDesk remote software on the customer’s computer in advance.
Ensure a stable internet connection during decryption. EngineDance team will require a video call with the customer for communication in English.
2. After unlocking ECU, you can flash the ECU.
If X5 gives an error flashing failed, don’t choose regular bench mode. Use Bench II mode instead.
Where to find the Bench II mode?
Method path: Advanced Functions- Bench Mode- Bosch MD1CC878/CS089/CE100/CE108 Bench (II).
Then read ECU flash and flash (write) ECU.
