B1478 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1478 – Power Window One Touch Up/Down Activated Simultaneously

 

B1478 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1478 Possible Causes

 

Faulty Power Window One Touch Up/Down Switch,Power Window One Touch Up/Down Switch harness is open or shorted,Power Window One Touch Up/Down Switch circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B1478 Description

 

The Body Control Module (BCM) monitors the Power Window One Touch Up/Down Switch. The BCM sets the OBDII code when the Power Window One Touch Up/Down Switch is not to factory specifications.