B1634 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1634 – Mirror Driver Left Circuit Short To Ground

 

B1634 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1634 Possible Causes

 

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

 

B1634 Description

 

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