ISO 15765-4 ISO 15765-4:2001 Road vehicles — Diagnostics on Controller Area Network (CAN) — Part 4: Requirements for emissions-related systems. SAE J1939 SAE J1939: Recommended Practice for a Serial Control and Communications Vehicle Network. ISO 16185 ISO 16185:2000 Road vehicles — engine family for homologation. ISO 2575 ISO 2575:2000 Road vehicles — Symbols for controls, indicators and tell-tales. ISO 16183 ISO 16183:2002 Heavy duty engines — Measurement of gaseous emissions from raw exhaust gas and of particulate emissions using partial flow dilution systems under transient test conditions. 3. PEDIDO DE HOMOLOGAÇÃO 3.1. Pedido de homologação de um tipo de motor ou de uma família de motores enquanto unidade técnica autónoma 3.1.1.