B2797 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B2797 – Communication Malfunction No. 1 Immobilizer System
B2797 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B2797 Possible Causes
Faulty Key,Faulty transponder key amplifier,Faulty transponder key ECU assembly,transponder key amplifier wire harness
This Diagnostic Trouble Code (DTC) is output when a communication error occurs between the key slot and transponder key Electronic Control Unit (ECU). A possible reason for the communication error is that noise is occurring on the communication line.