Vehicle ECU Reverse Engineering: Technical Analysis and Expertise

At the heart of modern vehicles, Electronic Control Units (ECUs) manage many critical functions, from engine performance to safety systems. ECU Reverse Engineering provides an in-depth understanding and optimization of these complex systems. As reverseengineer.net, we use the most advanced techniques to decipher the inner workings of ECUs with our team specializing in microcontrollers such as RH850, V850, MPC55xx.

Expert Team in ECU Reverse Engineering

Modern ECUs use high-security microcontrollers such as NXP (Freescale) MPC55xx, Renesas RH850, Infineon Tricore TC17xx/TC29xx/TC39xx, STMicroelectronics SPC56x. We apply special methods for their in-depth analysis.

Flash Memory Dumping (NAND/NOR SPI, QSPI, eMMC) – We use techniques such as Chip-Off, JTAG, UART, BDM to extract calibration tables, DTC (Diagnostic Trouble Codes) maps and security keys inside the ECU.

Bootrom Reverse Engineering – We identify security controls that prevent unauthorized access by analyzing AES/RSA encrypted firmware structures running in the bootloader phase.

ROM Patching & Debugging – By examining the OTP (One-Time Programmable) protection mechanisms of the microcontroller, we can make modifications at the code level.

Secure Debug Bypass – We perform hardware level analysis by re-enabling JTAG, SWD, DAP, XCP, CCP debug interfaces that were disabled for security reasons.

---

1. Microcontroller Analysis and Memory Mapping

• RH850 and V850 Microcontrollers: Known for their 32-bit RISC architecture, these microcontrollers offer high performance and low power consumption. Our team analyzes the internal structure of these processors, examining memory mapping and hardware-software interactions in detail.
• MPC55xx Series: These microcontrollers are widely used in automotive applications. We have in-depth knowledge of flash memory structures and analysis of input/output control modules.

2. Assembly, C and Firmware Analysis

By examining the codes of ECU software written in assembly and C languages, we analyze the operation of functions and the logic of algorithms. This is especially critical in performance optimization and debugging processes. With our Code Modification and Patch solutions, we increase system performance or customize certain functions by making the necessary changes to existing software.

RISC and CISC Architecture Analysis – We analyze the machine codes and instruction sets of processors such as PowerPC, ARM Cortex-R, Renesas SH-2A/SH-4A, Infineon Tricore, MIPS, V850, RH850 and analyze the critical functions within the ECU.

Firmware Encryption & Deprotection – ECU manufacturers protect their firmware with methods such as AES-128, RSA-2048, XOR-Polynomials, CRC Checksumming, Custom Compression (LZSS, Huffman, RLE). We decrypt these encryption layers with tools such as Ghidra, IDA Pro, Binwalk, HexRays Decompiler, QEMU Emulation.

CAN ve UDS Stack Reverse Engineering – We analyze how ECUs communicate via ISO 14229 (UDS), ISO 15765 (CAN), KWP2000, LIN, FlexRay, DoIP (Diagnostics over IP) protocols.

3. CAN-Bus Protocol Analysis and Data Communication

• CAN-Bus Protocol: The CAN-Bus, the backbone of in-vehicle communication, enables data exchange between different control units. A deep understanding of the protocol is essential for correctly interpreting and manipulating data packets.
• Data Logging and Analysis: By recording the traffic flowing over the CAN-Bus, we detect data packets that cause certain events or faults.

4. Engine and Vehicle Calibration Systems

Map and Table Analysis: We analyze maps of parameters such as fuel injection, ignition timing and turbo pressure stored in the ECU. This is critical for optimizing engine performance.
Calibration Optimization: We organize and optimize calibration data to improve vehicle performance and efficiency.

5. Security Analysis and Bypassing Protection Mechanisms

• Encryption and Protection Methods: We analyze the security protocols used in ECUs and decipher the encryption keys and protection mechanisms.
• Detection of Security Vulnerabilities: We prevent unauthorized access by identifying potential vulnerabilities in systems.

Why reverseengineer.net?

Our team has extensive knowledge of automotive microcontrollers and ECU systems. Using the latest hardware and software tools, we perform analysis and modification processes at the highest level. We attach great importance to the confidentiality of customer information and handle projects with a professional approach.

Contact us to get professional support on ECU Reverse Engineering and Automotive Electronic Systems. Our expert team is ready to carry out your projects with the highest quality and confidentiality standards.