B1178 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1178 – Right Front Seat Belt Buckle Pre-Tensioner Voltage Short

 

B1178 Possible Symptoms

 

Air Bag Warning Light ON

 

B1178 Possible Causes

 

Faulty Right Front Seat Belt Buckle Pre-Tensioner,Right Front Seat Belt Buckle Pre-Tensioner harness is open or shorted,Right Front Seat Belt Buckle Pre-Tensioner circuit poor electrical connection,Faulty Air Bag Sensor Unit (Air Bag Control Module)

 

B1178 Description

 

The Air Bag Sensor Unit (Air Bag Control Module) monitors the Right Side Front Seat Belt Buckle Pre-Tensioner. The Air Bag Sensor Unit sets the OBDII code when the circuit for front Right Front Seat Belt Buckle Pre-Tensioner is shorted to some power supply circuit.