AutoCodes – Cadillac – B0424 Cadillac

B0424 Cadillac Code - Temperature Control Right Feedback Circuit Actuator Range/Performance

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 Right Air Temperature Actuator, Right Air Temperature Actuator harness is open or shorted, Right 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: B0424 Cadillac indicates Temperature Control Right Feedback Circuit Actuator Range/Performance.
Common causes: Common causes include Faulty Right Air Temperature Actuator, Right Air Temperature Actuator harness is open or shorted, Right 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 1,495

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 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0424 Cadillac 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 a stepper motor, a logic circuit, and a potentiometer. The potentiometer inside the door actuator allows the module to monitor the current position of the actuator drive shaft. The module supplies a 5-volt source voltage to the potentiometer on the 5-volt reference circuit. The module supplies ground to the potentiometer through the low reference circuit. 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 module converts the voltage value to a count value where 1-volt is approximately equal to 51 counts. The HVAC control module calibrates the travel range of the HVAC door actuators when it is initially powered by the battery positive voltage circuit. During calibration, the module commands the actuators in each direction until door travel is stopped. The module stores the minimum door positions and the maximum door positions of each actuator into memory. The total travel range is calculated by subtracting the minimum door position from the maximum door position.

OBDII Code B0424 Cadillac - Temperature Control Right Feedback Circuit Actuator Range/Performance - AutoCodes.com — B0424 Cadillac Code - Temperature Control Right Feedback Circuit Actuator Range/Performance

What does this mean?

What are the Possible Causes of the DTC B0424 Cadillac?

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

How to Fix the DTC B0424 Cadillac?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0424 Cadillac 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.

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Get the B0424 Cadillac 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 B0424 Cadillac Code

1. What are the common symptoms of OBDII code B0424 in a Cadillac related to the Temperature Control Right Feedback Circuit Actuator?

- Common symptoms include inconsistent temperature control on the right side of the vehicle, fluctuating cabin temperature, and possible issues with the HVAC system.

2. What can cause the OBDII code B0424 in a Cadillac to trigger?

- The code B0424 is typically triggered due to a malfunction or performance issue with the temperature control right feedback circuit actuator in the HVAC system.

3. How can I diagnose the cause of OBDII code B0424 in my Cadillac?

- Diagnosing the cause of code B0424 may involve checking the wiring connections, testing the temperature control actuator, and using a scan tool to monitor HVAC system data.

4. Are there any quick repair tips for resolving OBDII code B0424 in a Cadillac?

- Quick repair tips may include checking and resetting the HVAC system, inspecting for loose connections, and ensuring proper operation of the temperature control actuator.

5. Can I continue driving my Cadillac with OBDII code B0424 present?

- It is generally safe to drive with code B0424 present, but it is recommended to address the issue promptly to avoid potential discomfort from inconsistent cabin temperatures.

6. How serious is OBDII code B0424 in a Cadillac?

- While code B0424 may not cause immediate safety concerns, it can lead to discomfort and inconvenience due to improper temperature control in the vehicle.

7. Will resetting the OBDII code B0424 in my Cadillac make it go away permanently?

- Resetting the code may temporarily clear the warning, but if the underlying issue with the temperature control actuator persists, the code is likely to reappear.

8. Can a DIY enthusiast fix OBDII code B0424 in a Cadillac?

- Depending on the skill level and equipment available, DIY enthusiasts may be able to address code B0424 by inspecting wiring, testing components, and making necessary repairs.

9. How much does it typically cost to repair OBDII code B0424 in a Cadillac at a professional service center?

- The cost of repairing code B0424 can vary based on the extent of the issue, but it may involve labor costs for diagnosis, parts replacement, and potential recalibration of the HVAC system.

10. Is it necessary to visit a dealership for OBDII code B0424 repair in a Cadillac?

- While dealerships have expertise in Cadillac systems, independent mechanics with experience in HVAC systems can also effectively diagnose and repair code B0424 in your vehicle.