UDS Protocol Interview Questions

UDS Protocol Interview Questions

  • Priyag Chaudhary
  • 26th Dec, 2020

UDS Protocol Interview Questions

1) What is UDS Protocol?

UDS stands for Unified Diagnostic Services. It is a diagnostic communication protocol used in electronic control units (ECUs) within automotive electronics, which is specified in the ISO 14229-1.

2) What are uds services?

3) Explain uds frame format?

4) Explain periodic message types of UDS?

5) List some uds negative response codes?

6) What is dcm autosar?

DCM (Diagnostic Communication Manager) is a Autosar module in ECU software that handles the tester diagnostics functionalities like UDS, KWP, and OBD, etc.

7) What is a diagnostic protocol?

A diagnostic protocol defines a set of conventions used for diagnostic communication between a diagnostic device and an ECU in the vehicle

8) List categories of services offered by UDS Protocol Stack?

9) What is NRC in UDS?

NRC stands for Negative Response Codes that is used by UDS in the diagnostic re- response to indicate the tester that a certain failure has occurred and the diagnostic request need to be initiated.

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