What is IATF 16949?
IATF 16949 is the quality management standard for automotive production and service parts. It builds on ISO 9001 and adds automotive requirements: the core tools (APQP, PPAP, FMEA, SPC and MSA), customer-specific requirements, product safety, supplier development, change control and warranty management.
Certification audits look for one thing above all: proof that your process controls actually connect. The FMEA should drive the control plan, the control plan should match what happens on the line, and changes should reach all of them. Spreadsheets make that very hard to show.