AutoCodes – Pontiac – B3782 Pontiac

B3782 Pontiac 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 Pontiac 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 1,026

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

What does this mean?

What are the Possible Causes of the DTC B3782 Pontiac?

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 Pontiac?

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 Pontiac 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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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 Pontiac Code

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

- Common symptoms include rough idling, decreased engine performance, and potential stalling.

2. What are the possible causes of OBDII code B3782 in a Pontiac related to Air Flow Control 10 Feedback Circuit Malfunction?

- Possible causes include a faulty air flow control sensor, wiring issues, or a malfunctioning engine control module (ECM).

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

- You can diagnose the issue by performing a thorough inspection of the air flow control sensor, checking for wiring damage, and using a diagnostic scanner to read the codes.

4. Can a dirty air filter cause OBDII code B3782 in a Pontiac related to Air Flow Control 10 Feedback Circuit Malfunction?

- While a dirty air filter can affect engine performance, it is unlikely to directly cause this specific error code.

5. Is it safe to continue driving my Pontiac with OBDII code B3782 related to Air Flow Control 10 Feedback Circuit Malfunction?

- It is not recommended to continue driving your vehicle with this error code, as it can lead to further engine damage and potential safety issues.

6. How can I reset OBDII code B3782 in my Pontiac related to Air Flow Control 10 Feedback Circuit Malfunction?

- You can reset the code using an OBDII scanner or by disconnecting the car's battery for a few minutes.

7. Are there any DIY repair tips for fixing OBDII code B3782 in a Pontiac related to Air Flow Control 10 Feedback Circuit Malfunction?

- DIY repair tips include checking and cleaning the air flow control sensor, inspecting wiring for damage, and ensuring proper connections.

8. Can a mechanic help me fix OBDII code B3782 in my Pontiac related to Air Flow Control 10 Feedback Circuit Malfunction?

- Yes, a qualified mechanic can diagnose the issue accurately and repair or replace the faulty components causing the error code.

9. Will fixing OBDII code B3782 in my Pontiac related to Air Flow Control 10 Feedback Circuit Malfunction improve fuel efficiency?

- Yes, resolving this error code can help improve fuel efficiency by restoring proper air flow control and engine performance.

10. How much can I expect to pay for repairs related to OBDII code B3782 in my Pontiac related to Air Flow Control 10 Feedback Circuit Malfunction?

- The repair costs can vary based on the specific issue, but expect to pay anywhere from $100 to $500 for parts and labor, depending on the extent of the repairs needed.