AutoCodes – Chevrolet – B0423 2016 Chevrolet Silverado

B0423 2016 Chevrolet Silverado Code - Right Temperature Control Feedback Circuit

Quick Answer

The Heating, Ventilation, and Air Conditioning (HVAC) control module controls the HVAC door actuators to regulate the airflow through the HVAC system. Common causes include Faulty Passenger Air Temperature Actuator, Passenger Air Temperature Actuator harness is open or shorted, Passenger Air Temperature Actuator circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B0423 2016 Chevrolet Silverado indicates Right Temperature Control Feedback Circuit.
Common causes: Common causes include Faulty Passenger Air Temperature Actuator, Passenger Air Temperature Actuator harness is open or shorted, Passenger Air Temperature Actuator circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 855

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 29, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0423 2016 Chevrolet Silverado Description

The Heating, Ventilation, and Air Conditioning (HVAC) control module controls the HVAC door actuators to regulate the airflow through the HVAC system. Each actuator consists of an electric motor and a potentiometer. The module supplies a low reference and 5-volt reference source voltage to the potentiometer. The HVAC control module monitors the voltage drop across the potentiometer on the door position signal circuit. When the actuator shaft rotates, the voltage on the door position signal circuit changes. The control circuit uses either a 0, 2.5 or 5-volt signal to command the actuator movement. When the actuator is at rest, the control circuit value is 2.5 volts. A 0 or 5-volt control signal commands the actuator movement in opposite directions.

OBDII Code B0423 2016 Chevrolet Silverado - Right Temperature Control Feedback Circuit - AutoCodes.com — B0423 2016 Chevrolet Silverado Code - Right Temperature Control Feedback Circuit

What does this mean?

What are the Possible Causes of the DTC B0423 2016 Chevrolet Silverado?

Faulty Passenger Air Temperature Actuator
Passenger Air Temperature Actuator harness is open or shorted
Passenger Air Temperature Actuator circuit poor electrical connection

How to Fix the DTC B0423 2016 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

B0423:02 Temperature Control 2 Feedback Circuit Short to Ground
B0423:05 Temperature Control 2 Feedback Circuit Short to Battery or Open
B0423:61 Temperature Control 2 Circuit Actuator Stuck

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0423 2016 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B0423 2016 Chevrolet Silverado code?

Need more information on how to fix the B0423 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0423 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B0423 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B0423 in a 2016 Chevrolet Silverado?

- Common symptoms include inconsistent air temperature from the right side vents, the climate control system not responding to temperature adjustments, or the A/C blowing hot air on the right side.

2. What does the OBDII code B0423 mean for a 2016 Chevrolet Silverado?

- The code B0423 indicates a malfunction in the right temperature control feedback circuit of the HVAC system.

3. What are possible causes of OBDII code B0423 in a 2016 Chevrolet Silverado?

- Potential causes of code B0423 include a faulty temperature control actuator, wiring issues in the feedback circuit, or a malfunctioning HVAC control module.

4. How can I diagnose the right temperature control feedback circuit issue in my 2016 Chevrolet Silverado?

- Diagnosing the problem involves using a scan tool to retrieve the specific trouble code, testing the temperature control actuator for proper functionality, and inspecting the wiring connections for any damage.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code B0423?

- While the vehicle may still be operable, it is recommended to address the issue promptly to prevent further damage to the HVAC system and ensure optimal comfort while driving.

6. How can I repair OBDII code B0423 in my 2016 Chevrolet Silverado?

- Repairing the issue may involve replacing the faulty temperature control actuator, repairing or replacing damaged wiring, or resetting the HVAC control module to clear the trouble code.

7. Is it possible to reset the OBDII code B0423 in a 2016 Chevrolet Silverado without repairs?

- While clearing the trouble code temporarily may be possible by resetting the vehicle's computer, it is crucial to address the underlying issue to prevent the code from reoccurring.

8. Are there any DIY tips for troubleshooting OBDII code B0423 in a 2016 Chevrolet Silverado?

- DIY tips may include checking and securing wiring connections, ensuring proper power supply to the temperature control actuator, and performing a reset of the HVAC system.

9. How much can I expect to pay for repairing OBDII code B0423 in a 2016 Chevrolet Silverado?

- The cost of repair can vary depending on the root cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

10. Will fixing OBDII code B0423 improve the overall performance of my 2016 Chevrolet Silverado?

- Resolving the right temperature control feedback circuit issue should restore proper operation of the HVAC system, ensuring consistent and comfortable temperature control in your vehicle.