Engine-Codes - Generic - B0233

B0233 Code - Air Flow Control Circuit

- Code Popularity: 6,987 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the Code B0233?

  • 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 to Fix the B0233 Code?

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.

|Code B0233 Tech Notes

B0233:01 Air Flow Control Circuit Short to Battery
B0233:02 Air Flow Control Circuit Short to Ground
B0233:04 Air Flow Control Circuit Open

|What is the Cost to Diagnose the Code B0233?

Labor: 1.0

The cost to diagnose the B0233 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.

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|What are Code B0233 Possible Symptoms?

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

|What Does the B0233 Code Mean?

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.

B0233 Code - Air Flow Control Circuit

|Need more Information on the B0233 Code?

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|Code B0233 Information for Specific Makes

|Need Help with the B0233 Code?

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