| Category |
Features |
Description |
| Protocol Standard |
ISO 14229 |
Supports the latest UDS standard for vehicle diagnostics and ECU communication. |
| Diagnostic Session Control |
0x10 (Session Control) |
Switches ECU to default, programming, or extended diagnostic sessions. |
| Security Access |
0x27 (Security Access) |
Implements multi-level security for ECU access and authentication. |
| Communication Control |
0x28 (Communication Control) |
Controls communication modes (e.g., suppress, enable, disable messaging). |
| Tester Present |
0x3E (Tester Present) |
Keeps diagnostic session alive with periodic tester presence signals. |
| ECU Reset |
0x11 (ECU Reset) |
Executes soft, hard, or power-on resets of the ECU. |
| Read Data by Identifier |
0x22 (RDBI) |
Retrieves real-time data or stored information (e.g., VIN, sensor values). |
| Write Data by Identifier |
0x2E (WDBI) |
Writes data to specific ECU parameters (e.g., configuration updates). |
| Routine Control |
0x31 (Routine Control) |
Executes specific routines like DTC clearing, programming voltage checks, etc. |
| Input/Output Control |
0x2F (IO Control) |
Dynamically controls ECU outputs (e.g., actuators or sensors). |
| Request Download |
0x34 (Download Request) |
Initiates memory download for software updates or data transfer. |
| Request Upload |
0x35 (Upload Request) |
Enables upload of ECU memory or stored data for analysis. |
| Transfer Data |
0x36, 0x37 (Transfer Data and Exit Transfer) |
Supports data transfer operations for updates or diagnostics. |
| DTC Services |
0x19 (Diagnostic Trouble Code Services) |
Reads, clears, or logs diagnostic trouble codes (DTCs). |
| Memory Access |
0x23 (Read Memory by Address), 0x3D (Write Memory by Address) |
Provides direct access to ECU memory for advanced diagnostics or reprogramming. |
| Negative Response Handling |
0x7F (Negative Response Code) |
Manages error handling for unsupported or failed requests. |
| Flow Control |
Integrated into ISO-TP |
Ensures proper segmentation and reassembly for large diagnostic messages. |
| Protocol Layer |
ISO-TP (ISO 15765-2) |
Handles transport layer (CAN, Ethernet, or FlexRay). |
| Custom Services |
Proprietary UDS extensions |
Supports OEM-specific extensions for unique diagnostics and functionalities. |
| Transport Layers |
CAN, Ethernet, FlexRay |
Broad compatibility with multiple transport protocols for scalability and flexibility. |
| Encryption and authentication |
Supports secure communication to prevent unauthorized access or tampering. |
Security Enhancements |
| Timing Configurations |
Configurable P2 and P2* |
Allows custom timing settings for different UDS sessions and applications. |
