B2349 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B2349 – Mirror Switch Reference Voltage Negative Common Open Circuit

 

B2349 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B2349 Possible Causes

 

Faulty Mirror Switch,Mirror Switch harness is open or shorted,Mirror Switch circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B2349 Description

 

The Body Control Module (BCM) monitors the Mirror Switch. The BCM sets the OBDII code when the Mirror Switch is not to factory specifications.