This word entry contains ASL signs for "wrong", related vocabulary, a sentence "what's wrong" and some tips.
How to sign "wrong" the right way in American Sign Language:
Meaning: Not correct or true; unjust, dishonest, or immoral.
Pronunciation (sign description): Dominant "Y" hand (handshape), palm in front of the signer (orientation), moves toward (movement) the chin (location).
The repetition of movement is once or twice, depending on the contexts. Small, different movements may convey subtle gradients of meanings. For beginners, use the base above.
Related signs: INCORRECT, FALSE, UNTRUE, ERRANEOUS, INACCURATE, INVALID, MISTAKEN.
Meaning: "What's wrong?" or "What's the matter?"
For all wh-questions, eyebrows are furrowed along with intonation.
Often, fluent and native Deaf signers omit the "what" part. The inflections of the single "what"-omitted sign can convey a few different meanings that we can understand with the senstivity to subtleties of intonation, including facial expression and subtle movements. E.g. "What's the matter?", "nothing wrong with that", and a few others.
First 100 words.
As you feel more comfortable with the first few hundreds of ASL signs, progress further with your vocabulary and learn signing more.