B1638 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1638 – Mirror Driver Right Short To Ground

 

B1638 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1638 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)

 

B1638 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.