Received a peer for help, a 13-year-old Dongfeng Fengshen H30 key was lost, the device could not read the password, the anti-theft box was also encrypted and could not obtain the password, it took 130 yuan to query the password with the frame number, and it took 3 days, the owner was more anxious, and asked if it could be solved?
13 years of Dongfeng Fengshen H30 uses 4D60 chip, the anti-theft box is encrypted and cannot read the data, since the owner is in a hurry, he can only disassemble the engine computer, obtain anti-theft data, and view the password. This car uses a Delphi MT221 engine computer, anti-theft data is stored in cpu-MC9S12XEP768, and this engine computer is not easy to disassemble, can only be read by breaking the cover.
This model of engine computer has two CPUs, and today the one encountered is the one with a mask of 5M48H, which reads the data through the wiring diagram. This kind of computer needs to be unlocked and read first, and then locked back after reading the data, otherwise the vehicle will not be able to start. When reading data, a partition error will be prompted, just click to continue the default partition. Below are the wiring diagrams and considerations for reading the data.
We only need to read out the D-flash data, and then lock it and resume loading. Through the anti-theft data read out, the password can be viewed according to the figure below.
After obtaining the password, you can use the ordinary 4D60 chip to directly get on the car and match.