diff --git a/OEM-Docs/GM/2017 GMC Yukon XL ECU Diagram.pdf b/OEM-Docs/GM/2017 GMC Yukon XL ECU Diagram.pdf new file mode 100644 index 00000000..a7808be7 Binary files /dev/null and b/OEM-Docs/GM/2017 GMC Yukon XL ECU Diagram.pdf differ