B1249 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1249 – Double Locking ECU Communication Stop
B1249 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1249 Possible Causes
Faulty Double Lock Door Control Relay,Double Lock Door Control Relay harness is open or shorted,Double Lock Door Control Relay circuit poor electrical connection,Faulty Main Body ECU
B1249 Description
The Diagnostic Trouble Code (DTC) B1249 is stored when communication between the Double Lock Door Control Relay and Main Body ECU stops for more than 10 seconds.