Engine-Codes - Buick - B0263 BUICK

B0263 BUICK Code - Air Flow Control 6 Circuit

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

|B0263 BUICK code possible causes

  • Faulty Mode Actuator
  • Mode Actuator harness is open or shorted
  • Mode Actuator circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module

|How is the B0263 BUICK 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 B0263 BUICK code

Labor: 1.0

The cost to diagnose the B0263 BUICK 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 B0263 BUICK code possible symptoms?

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

|What is B0263 BUICK code meaning?

Stepper motors are used for temperature regulation, air distribution control and recirculation door control. With the switches and dials on the HVAC controls, air temperature door position, mode door position and recirculation door position can be selected. The selected values are passed to the Heating, Ventilation, and Air Conditioning (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 B0263 BUICK code?

Need more information on how to fix the B0263 BUICK code?
Get Access to Factory Service Manuals

|Need help with a B0263 BUICK code?

Get the B0263 Buick code diagnosed by a professional: Find a repair shop in your area