Wiring diagram
📄 Trionic engine management system, T7 4-cyl OBD II (from X3020001, Part 1/3)
📄 Trionic engine management system, T7 4-cyl OBD II (from X3020001, Part 2/3)
📄 Trionic engine management system, T7 4-cyl OBD II (from X3020001, Part 3/3)