B18B8 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B18B8 – Master Switch Rear Right Window Switch

 

B18B8 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B18B8 Possible Causes

 

Faulty Rear Right Window Switch,Rear Right Window Switch harness is open or shorted,Rear Right Window Switch circuit poor electrical connection

 

B18B8 Description

 

Whenever the Door Module detects a Rear Right Window signal from the master power window switch, for over 30 seconds, this Diagnostic Trouble Code (DTC) will set.