Day-30, Understanding UDS Services: 0x19 - ReadDTCInformation | Comprehensive Guide to DTC Handling скачать в хорошем качестве

Day-30, Understanding UDS Services: 0x19 - ReadDTCInformation | Comprehensive Guide to DTC Handling

UDS Service 0x19 (ReadDTCInformation) based on ISO 14229, which is crucial for retrieving Diagnostic Trouble Codes (DTCs) from an Electronic Control Unit (ECU). ✅ What is UDS Service 0x19? The 0x19 (ReadDTCInformation) service allows diagnostic tools to retrieve and analyze DTCs stored in the ECU memory. These DTCs provide critical insights into vehicle malfunctions, enabling efficient troubleshooting and repair. 🔹 Key Features Covered in This Video: How the ECU stores and manages DTCs. 0x19 Sub-functions and their significance: ✔ 0x01 - ReportNumberOfDTCByStatusMask (Retrieve count of stored DTCs) ✔ 0x02 - ReportDTCByStatusMask (Get DTCs with a specific status) ✔ 0x03 - ReportDTCSnapshotIdentification (Identify DTC snapshot data) ✔ 0x04 - ReportDTCSnapshotRecordByDTCNumber (Retrieve snapshot data for a specific DTC) ✔ 0x05 - ReportDTCStoredDataByRecordNumber (Obtain stored DTC records) ✔ 0x06 - ReportDTCExtDataRecordByDTCNumber (Fetch extended data for a DTC) ✔ 0x07 - ReportSupportedDTC (Retrieve a list of supported DTCs) ✔ 0x08 - ReportFirstTestFailedDTC (Get first detected DTC) ✔ 0x09 - ReportMostRecentTestFailedDTC (Get most recent failed DTC) ✔ 0x0A - ReportDTCFaultDetectionCounter (Retrieve fault occurrence counter) ✔ 0x0B - ReportDTCWithPermanentStatus (Identify permanently stored DTCs) 🔹 Message Format & Example: 📌 Request: 19 02 (ReportDTCByStatusMask) 📌 Response: 59 02 DTC_H DTC_M DTC_L Status Example: ✅ Request: 19 02 FF (Get all active DTCs) ✅ Response: 59 02 12 34 56 0A (DTC 123456 with status 0A) 🔹 Real-World Use Cases in Automotive Diagnostics: ✔ 0x19 - ReadDTCInformation helps in detecting and analyzing fault codes. ✔ Used in vehicle servicing, ECU diagnostics, and failure analysis. ✔ Essential for OBD-II and automotive compliance testing. 🚀 Live Demonstration: Watch a practical demo on how to retrieve DTCs using Vector CANoe and CAPL scripting, ensuring you master ECU diagnostics and troubleshooting! 📌 Subscribe for More! Don’t forget to like, comment, and subscribe for in-depth videos on automotive protocols, UDS diagnostics, CANoe scripting, and ECU testing!