B120B Code: Meaning, Causes, and Symptoms | OBD2 Codes

B120B – Passenger Seat Back Temperature Sensor

 

B120B Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B120B Possible Causes

 

Faulty Passenger Seat Back Temperature Sensor,Passenger Seat Back Temperature Sensor harness is open or shorted,Passenger Seat Back Temperature Sensor circuit poor electrical connection,Faulty Seat Control Module E (SCME)

 

B120B Description

 

The Seat Control Module E (SCME) monitors the Passenger Seat Back Temperature Sensor. The SCME sets the OBDII code when the Passenger Seat Back Temperature Sensor is not to factory specifications.