TS 16949 Do internal auditors have to train five tools and obtain certificates before they can audit other departments?
In the name of external auditor, I tell you that training five tools and obtaining certificates is the requirement of TS 16949 specification. Your external auditor is right. So in general, what we see is the training certificate of a consulting company, which States that it has been trained by TS 16949 and related reference books, so it is ok!