B2798 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B2798 – Communication Malfunction No. 2 Immobilizer System
B2798 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B2798 Possible Causes
This code is stored in the memory when a key that does not have a transponder chip is inserted or if communication between the key and transponder key ECU assy is impossible.