自己 じこ検査 けんさ符号 ふごうじゃなかったです
jikokensafugōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 自己検査符号

1. Wasn't self-inspection code.; Wasn't a self-check symbol.

Past/Perfective
Negative
Polite
Casual Register
Computing