U2021 Code: Meaning, Causes, and Symptoms | OBD2 Codes

U2021 – Invalid /fault data received (Non SCP)

 

U2021 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

U2021 Description

 

Invalid /fault data received (Non SCP) is the generic description for the U2021 code, but the manufacturer may have a different description. Currently we have no further information abouth the U2021 OBDII code.