Engine-Codes - Chevrolet - B023A Chevrolet

B023A Chevrolet Code - HVAC Actuators Supply Voltage

- Code Popularity: 1,055 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC B023A Chevrolet?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Actuators
  • HVAC Actuators harness is open or shorted
  • HVAC Actuators circuit poor electrical connection
  • Faulty HVAC Control Module
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How to Fix the DTC B023A Chevrolet?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B023A Chevrolet code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the B023A Chevrolet Code Mean?

Stepper motors are used for temperature regulation, air distribution control and recirculation door control. With the switches and dials on the Heating, Ventilation, and Air Conditioning (HVAC) controls, air temperature door position, mode door position and recirculation door position can be selected. The selected values are passed to the HVAC Control Module via serial data. The HVAC control module supplies a 12 V reference voltage to the stepper motors and energizes the 4 stepper motor coils with a pulsed ground signal. The stepper motors move the appropriate doors into the calculated positions, in order to reach the desired positions.

B023A Chevrolet Code - HVAC Actuators Supply Voltage

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