B1265 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1265 – Cold Air Bypass Door Actuator Circuit Failure

 

B1265 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1265 Possible Causes

 

Faulty Cold Air Bypass Door Actuator,Cold Air Bypass Door Actuator harness is open or shorted,Cold Air Bypass Door Actuator circuit poor electrical connection,Faulty Electronic Automatic Temperature Control (EATC) Module

 

B1265 Description

 

The Electronic Automatic Temperature Control (EATC) Module monitors the Cold Air Bypass Door Actuator. The EATC Module sets the OBDII code when the Cold Air Bypass Door Actuator is not to factory specifications.