AutoCodes – Chevrolet – B3782 Chevrolet

B3782 Chevrolet Code - Air Flow Control 10 Feedback Circuit Malfunction

Quick Answer

The actuators operate using 5 circuits. Common causes include Faulty Auxiliary Mode Actuator, Auxiliary Mode Actuator harness is open or shorted, Auxiliary Mode Actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B3782 Chevrolet indicates Air Flow Control 10 Feedback Circuit Malfunction.
Common causes: Common causes include Faulty Auxiliary Mode Actuator, Auxiliary Mode Actuator harness is open or shorted, Auxiliary Mode Actuator circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 14,277

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3782 Chevrolet Description

The actuators operate using 5 circuits. A 5-volt reference, low reference, signal circuit and two bi-directional 0 or 12 volt control circuits. The Heating, Ventilation, and Air Conditioning (HVAC) Control Module supplies a low reference and 5-volt reference to the potentiometer. The HVAC control module monitors the voltage drop across the potentiometer on the door position signal circuit. As the actuator door changes position the door position signal circuit voltage also changes. The two bi-directional control circuits enable the actuator to operate. Both circuits are set to 0 volts when the HVAC control module detects, from the feedback potentiometer, that the actuator is in the desired position. In order to move the actuator, the HVAC control module switches the appropriate control circuit to 12 volts.

OBDII Code B3782 Chevrolet - Air Flow Control 10 Feedback Circuit Malfunction - AutoCodes.com — B3782 Chevrolet Code - Air Flow Control 10 Feedback Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B3782 Chevrolet?

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

How to Fix the DTC B3782 Chevrolet?

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 B3782 Chevrolet 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 B3782 Chevrolet code?

Need more information on how to fix the B3782 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B3782 Chevrolet 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 B3782 Chevrolet Code

1. What are the common symptoms of OBDII code B3782 in a Chevrolet related to the Air Flow Control 10 Feedback Circuit Malfunction?

- Common symptoms include poor engine performance, rough idling, stalling, and in some cases, the Check Engine light may illuminate.

2. What are the possible causes of the B3782 OBDII code in a Chevrolet?

- The code B3782 can be triggered by issues such as a faulty air flow control actuator, wiring problems, or a malfunctioning feedback circuit.

3. How can I diagnose the B3782 code in my Chevrolet related to the Air Flow Control 10 Feedback Circuit Malfunction?

- Diagnosing the B3782 code involves inspecting the air flow control actuator, checking the wiring for any damage, and testing the feedback circuit for proper functioning.

4. Can a DIY enthusiast repair the B3782 OBDII code in a Chevrolet themselves?

- Depending on your skill level and access to tools, you may be able to repair the B3782 code by replacing the faulty air flow control actuator, repairing damaged wiring, or addressing issues with the feedback circuit.

5. What are some tips for repairing the Air Flow Control 10 Feedback Circuit Malfunction in a Chevrolet triggering the B3782 code?

- Ensure you have the proper diagnostic tools, follow a step-by-step repair guide specific to your vehicle, and double-check all connections and components related to the air flow control system.

6. Is it safe to continue driving my Chevrolet with the B3782 OBDII code indicating an Air Flow Control 10 Feedback Circuit Malfunction?

- It is not recommended to drive your vehicle with the B3782 code present, as it can lead to further engine damage or performance issues. It's best to address the underlying problem promptly.

7. How much does it typically cost to repair the B3782 OBDII code in a Chevrolet related to the Air Flow Control 10 Feedback Circuit Malfunction?

- The cost of repairing the B3782 code can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $100 to $500 or more.

8. Can a dirty air filter cause the B3782 code to trigger in a Chevrolet?

- While a dirty air filter can affect engine performance, it is unlikely to directly trigger the B3782 code. Focus on inspecting the air flow control components and circuitry for this particular issue.

9. Are there any recalls or technical service bulletins related to the B3782 OBDII code in Chevrolet vehicles?

- Check with your local Chevrolet dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins addressing the B3782 code and related issues.

10. What steps should I take if I clear the B3782 code in my Chevrolet but it returns shortly after?

- If the B3782 code reappears after being cleared, it indicates that the underlying issue persists. Revisit the diagnosis process, make sure repairs were done correctly, and consider seeking professional help if needed.

1. What are common symptoms of OBDII code B3782 Chevrolet (Air Flow Control 10 Feedback Circuit Malfunction)?

The common symptoms include rough idling, decreased fuel efficiency, and potential stalling of the vehicle.

2. What are the possible causes of OBDII code B3782 Chevrolet?

Possible causes may include a faulty air flow control sensor, damaged wiring or connectors in the air flow control circuit, or a malfunctioning engine control module (ECM).

3. How can I diagnose the OBDII code B3782 Chevrolet?

Diagnosing this code typically involves using an OBDII scanner to retrieve the code, inspecting the air flow control sensor and its circuit, checking for any loose connections, and testing the ECM.

4. Can a dirty air filter trigger OBDII code B3782 Chevrolet?

A dirty air filter may not directly trigger this specific code, but it can contribute to air flow issues that may lead to related malfunctions. It's recommended to ensure the air filter is clean and properly installed.

5. How can I repair OBDII code B3782 Chevrolet at home?

If you have some mechanical experience, you may attempt to replace the air flow control sensor, repair any damaged wiring or connectors, and clear the code using an OBDII scanner. However, if you're unsure, it's best to consult a professional mechanic.

6. Is it safe to continue driving with OBDII code B3782 Chevrolet illuminated?

While the vehicle may still be operable with this code present, it's not recommended to ignore it. Continuing to drive with this issue unresolved can potentially lead to further damage and reduced performance.

7. Can weather conditions affect OBDII code B3782 Chevrolet?

Extreme weather conditions, such as very low or high temperatures, may impact the air flow control system and potentially trigger this code. Ensuring proper insulation and protection of the components can help prevent weather-related malfunctions.

8. How much does it typically cost to repair OBDII code B3782 Chevrolet at a mechanic?

The cost of repairing this code can vary depending on the specific issue causing it, the labor rates of the mechanic, and the cost of any replacement parts needed. It's advisable to obtain quotes from different mechanics for an accurate estimate.

9. Will disconnecting the battery reset OBDII code B3782 Chevrolet?

Disconnecting the battery may reset the code temporarily, but if the underlying issue causing the malfunction is not addressed, the code is likely to reappear once the vehicle is driven again. It's crucial to diagnose and repair the root cause of the problem.

10. How long can it take to repair OBDII code B3782 Chevrolet?

The repair time for this code can vary depending on the complexity of the issue, the availability of parts, and the expertise of the mechanic. Simple fixes like replacing a sensor may take a few hours, while more intricate problems could require a day or more of work.