AutoCodes – Chevrolet – B0423 2015 Chevrolet Silverado

B0423 2015 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 2015 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 784

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 2015 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 2015 Chevrolet Silverado - Right Temperature Control Feedback Circuit - AutoCodes.com — B0423 2015 Chevrolet Silverado Code - Right Temperature Control Feedback Circuit

What does this mean?

What are the Possible Causes of the DTC B0423 2015 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 2015 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 2015 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 2015 Chevrolet Silverado code?

Need more information on how to fix the B0423 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0423 2015 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 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B0423 in a 2015 Chevrolet Silverado?

- Common symptoms include inconsistent or incorrect temperatures coming from the right side vents, the inability to adjust the temperature on the right side independently, and potential issues with the climate control system.

2. What does the OBDII code B0423 indicate in a 2015 Chevrolet Silverado?

- OBDII code B0423 indicates a problem with the right temperature control feedback circuit in the climate control system of the vehicle.

3. What are some possible causes of OBDII code B0423 in a 2015 Chevrolet Silverado?

- Possible causes include a faulty temperature control actuator, damaged wiring or connectors in the feedback circuit, a malfunctioning climate control module, or a problem with the HVAC system.

4. How can I diagnose the issue related to OBDII code B0423 in my 2015 Chevrolet Silverado?

- Proper diagnosis involves using an OBDII scanner to retrieve the code, checking the temperature control actuator and its wiring for any signs of damage, and testing the climate control system components for proper functionality.

5. Can I continue to drive my 2015 Chevrolet Silverado with OBDII code B0423 present?

- It is not recommended to drive the vehicle with unresolved OBDII code B0423, as it can lead to discomfort due to temperature control issues and may cause further damage to the climate control system.

6. How can I repair OBDII code B0423 in my 2015 Chevrolet Silverado?

- Repairing OBDII code B0423 may involve replacing the temperature control actuator, repairing or replacing damaged wiring or connectors, resetting the climate control module, or addressing any other underlying issues identified during diagnosis.

7. Is it possible to reset OBDII code B0423 in a 2015 Chevrolet Silverado without making any repairs?

- While clearing the code may temporarily turn off the check engine light, it is crucial to address the root cause of OBDII code B0423 to prevent the issue from recurring in the future.

8. How much does it typically cost to repair OBDII code B0423 in a 2015 Chevrolet Silverado?

- The cost of repairing OBDII code B0423 can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic.

9. Can extreme weather conditions affect the occurrence of OBDII code B0423 in a 2015 Chevrolet Silverado?

- Extreme temperatures or humidity levels can potentially exacerbate issues with the climate control system, including those related to OBDII code B0423, so it's essential to maintain the system properly and address any malfunctions promptly.

10. How can I prevent OBDII code B0423 from recurring in my 2015 Chevrolet Silverado?

- Regular maintenance of the climate control system, addressing any temperature control issues promptly, and ensuring all components are in good working order can help prevent the recurrence of OBDII code B0423 in your vehicle.