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  • SAE J1979-3_202212

SAE J1979-3_202212

E/E Diagnostic Test Modes: Zero Emission Vehicle Propulsion Systems on UDS (ZEVonUDS)

SAE International, 12/16/2022

Publisher: SAE

File Format: PDF

$71.00$142.00


Published:16/12/2022

File Size:1 file , 780 KB

Note:This product is unavailable in Ukraine, Russia, Belarus

SAE J1979-3 describes the communication between the zero emissions propulsion systems and test equipment required by government regulations. Standardization regulations require passenger cars and light-, medium-, and heavy-duty trucks to support a minimum set of diagnostic information to external (off-board) “generic” test equipment.
To achieve this, SAE J1979-3 is based on the Open Systems Interconnection (OSI) Basic Refer to Model in accordance with ISO/IEC 7498-1 and ISO/IEC 10731, which structures communication systems into seven layers. When mapped on this model, the services specified are broken into:
  • Application (layer 7), specified in:
    1. ○
      ISO 14229-1, ISO 14229-3 UDSonCAN, or ISO 14229-5 UDSonIP
    2. ○
      SAE J1979-3 ZEVonUDS
  • Presentation layer (layer 6), specified in:
    1. ○
      SAE J1930, SAE J1930DA
    2. ○
      SAE J1979DA
    3. ○
      SAE J2012, SAE J2012DA
    4. ○
      SAE J1939DA, SAE J1939-73
  • Session layer services (layer 5), specified in:
    1. ○
      ISO 14229-2
  • Transport layer services (layer 4), specified in:
    1. ○
      DoCAN: ISO 15765-2 Transport protocol and network layer services
    2. ○
      ISO 15765-4 Requirements for emissions related systems
    3. ○
      DoIP: ISO 13400-2 Road vehicles - Diagnostic communication over Internet Protocol (DoIP) - Part 2: Transport protocol and network layer services
  • Network layer services (layer 3), specified in:
    1. ○
      DoCAN: ISO 15765-2 Transport protocol and network layer services
    2. ○
      ISO 15765-4 Requirements for emissions related systems
    3. ○
      DoIP: ISO 13400-2 Road vehicles - Diagnostic communication over Internet Protocol (DoIP) - Part 2: Transport protocol and network layer services
  • Data link layer (layer 2), specified in:
    1. ○
      DoCAN: ISO 15765-4, ISO 11898-1, -2
    2. ○
      DoIP: ISO 13400-3 Road vehicles - Diagnostic communication over Internet Protocol (DoIP) - Part 3: Wired vehicle interface based on IEEE 802.3
  • Physical layer (layer 1), specified in:
    1. ○
      DoCAN: ISO 15765-4, ISO 11898-1, -2, in accordance with Table 1
    2. ○
      DoIP: ISO 13400-3 Road vehicles - Diagnostic communication over Internet Protocol (DoIP) - Part 3: Wired vehicle interface based on IEEE 802.3
    3. ○
      ISO 13400-4 Road vehicles - Diagnostic communication over Internet Protocol (DoIP) - Part 4: Ethernet-based high-speed data link connector
    4. ○
      SAE J1962 Diagnostic Connector
NOTE: SAE J1979-3 provides a standard to satisfy known country-specific certification regulations. SAE J1979-3 is not considered a final authority for interpretation of the certification regulations, so users of this document should determine the applicability of capabilities defined in this document for their specific OBD regulatory requirements

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