Car manufacturers consider the circuit diagrams of the ECU as sensitive information and treat them as intellectual property. They are not usually publicly accessible due to the following reasons:
1. Security: The ECU is a critical component responsible for controlling various aspects of the car's engine and its functions. Releasing detailed circuit diagrams could potentially allow unauthorized individuals to manipulate or tamper with the ECU, compromising the car's performance and safety.
2. Complexity: The ECU is an intricate electronic system, and its circuit diagrams are highly complex. These diagrams are not user-friendly and may only be easily understandable to specialists in automotive electronics. Making them publicly available would be challenging for laypersons to comprehend and could lead to misinterpretations or misuse.
3. Intellectual Property Rights: Car manufacturers invest substantial resources in designing and developing the ECU and consider its circuit diagrams as proprietary information. Releasing these diagrams publicly would risk unauthorized copying or reverse engineering, infringing on the manufacturer's intellectual property rights.
4. Confidentiality Agreements: Many car manufacturers require third-party repair facilities and dealerships to sign confidentiality agreements before gaining access to sensitive technical information, including circuit diagrams. This helps maintain the exclusivity and security of the information.
5. Limited Access: Even for authorized personnel, access to circuit diagrams may be restricted based on roles and responsibilities. Car manufacturers may have a tiered access system where certain diagrams are only available to specific levels of technicians with appropriate training and qualifications.
Therefore, it can be difficult for the general public to obtain the detailed circuit diagrams of a car computer. If you are interested in learning about the principles of automotive electronics or understanding the basic functioning of the ECU, you may find some generalized information available in automotive textbooks or online resources.
