B1273 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1273 – Servo Motor Potentiometer Vent Circuit Open

 

B1273 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1273 Possible Causes

 

Faulty Servo Motor Potentiometer Vent,Servo Motor Potentiometer Vent harness is open or shorted,Servo Motor Potentiometer Vent circuit poor electrical connection,Faulty Heating, Ventilation, and Air Conditioning (HVAC) Module

 

B1273 Description

 

The Heating, Ventilation, and Air Conditioning (HVAC) Module monitors the Servo Motor Potentiometer Vent. The HVAC Module sets the OBDII code when the Servo Motor Potentiometer Vent is not to factory specifications.