AutoCodes
 
OBDII Code List
 
B0414 CHEVROLET

B0414 CHEVROLET - Temperature Control Left Feedback Circuit Actuator Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

Possible causes

  • Faulty Left Air Temperature Actuator
  • Left Air Temperature Actuator harness is open or shorted
  • Left Air Temperature Actuator circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module
  What does this mean?

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B0414 Chevrolet Description

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module controls the HVAC door actuators to regulate the airflow through the HVAC system. Each actuator consists of a stepper motor, a logic circuit, and a potentiometer. The potentiometer inside the door actuator allows the module to monitor the current position of the actuator drive shaft. The module supplies a 5-volt source voltage to the potentiometer on the 5-volt reference circuit. The module supplies ground to the potentiometer through the low reference circuit. The HVAC control module monitors the voltage drop across the potentiometer on the door position signal circuit. When the actuator shaft rotates, the voltage on the door position signal circuit changes. The module converts the voltage value to a count value where 1-volt is approximately equal to 51 counts. The HVAC control module calibrates the travel range of the HVAC door actuators when it is initially powered by the battery positive voltage circuit. During calibration, the module commands the actuators in each direction until door travel is stopped. The module stores the minimum door positions and the maximum door positions of each actuator into memory. The total travel range is calculated by subtracting the minimum door position from the maximum door position.
OBDII Code B0414 Chevrolet - Temperature Control Left Feedback Circuit Actuator Range/Performance - AutoCodes.com

Need more help?

Get the B0414 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Related Information

B0414 CHEVROLET Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the B0414 Chevrolet code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧