B18B7 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B18B7 – Master Switch Rear Left Window Switch


B18B7 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


B18B7 Possible Causes


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


B18B7 Description


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