Engine-Codes - Gmc - B023A GMC

B023A GMC Code - HVAC Actuators Supply Voltage

Repair Importance Level: 1/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

|B023A GMC code possible 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

|How is the B023A GMC code repair?

Start by checking 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's pins.

|What is the cost to diagnose the B023A GMC code

Labor: 1.0

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

|What are B023A GMC code possible symptoms?

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

|What is B023A GMC code meaning?

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.

|Need more information with the B023A GMC code?

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