B1844 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1844 – Phone Handset Circuit Failure
B1844 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1844 Possible Causes
Faulty Phone Handset,Phone Handset harness is open or shorted,Phone Handset circuit poor electrical connection,Faulty Body Control Module (BCM)
The Body Control Module (BCM) monitors the Phone Handset. The BCM sets the OBDII code when the Phone Handset is not to factory specifications.