Engine-Codes
 
OBDII Code List
 
B0441 CHEVROLET

B0441 CHEVROLET - Left Air Temperature Actuator

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B0441 CHEVROLET 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 Auxiliary Heating and Cooling Systems (HVAC) Control Module

Cost of diagnosing the B0441 CHEVROLET code

    Labor: 1.0

    The cost of diagnosing the B0441 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B0441 CHEVROLET Possible Symptoms

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

B0441 CHEVROLET Meaning

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module commands the left air temperature actuator movement with one of three voltage signals applied to the left air temperature door control circuit. A low voltage of zero volts moves the left air temperature door toward full cold. A voltage of 2.5 volts stops the door. A voltage of 5 volts moves the left air temperature door toward full hot. The HVAC control module determines the current position of the actuator by monitoring the feedback voltage of the left air temperature door position signal circuit. The feedback potentiometer position is a function of the actuator position. A high voltage indicates a full cold left air temperature door position. A low voltage indicates a full hot left air temperature door position. The HVAC control module controls the left air temperature door position in order to maintain the selected air temperature.

Whenever the HVAC control module keep alive memory battery power is interrupted, the HVAC control module will perform a recalibration of the actuators. During recalibration, the HVAC control module will drive the actuators to their minimum and maximum travel extremes. The HVAC control module will then calculate a travel range from this data and compare it to a calibrated range within the HVAC control module. If the actual travel range is not within the calibrated expected range, the actuator will be considered not calibrated and the DTC will set.

OBDII Code B0441 CHEVROLET - Left Air Temperature Actuator - Engine-Codes.com

Related Information