AutoCodes – Buick – U3507 Buick

U3507 Buick Code - Control Module Input Power 'B' Circuit Intermittent/Erratic

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Faulty Control Module setting the code, Control Module harness is open or shorted, Control Module 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: U3507 Buick indicates Control Module Input Power 'B' Circuit Intermittent/Erratic.
Common causes: Common causes include Faulty Control Module setting the code, Control Module harness is open or shorted, Control Module 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 634

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 Jun 18, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U3507 Buick Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. With the ignition is ON, the Diagnostic Trouble Code (DTC) will set when the control module or sensor detects a system voltage of less than approximately 9 V for approximately 5 s.

OBDII Code U3507 Buick - Control Module Input Power 'B' Circuit Intermittent/Erratic - AutoCodes.com — U3507 Buick Code - Control Module Input Power 'B' Circuit Intermittent/Erratic

What does this mean?

What are the Possible Causes of the DTC U3507 Buick?

Faulty Control Module setting the code
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC U3507 Buick?

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 U3507 Buick 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 U3507 Buick code?

Need more information on how to fix the U3507 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U3507 Buick 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 U3507 Buick Code

1. What are common symptoms of OBDII code U3507 in a Buick?

- Common symptoms include intermittent or erratic engine performance, stalling, rough idling, and issues with acceleration.

2. What can cause the U3507 code to trigger in a Buick?

- The U3507 code is typically triggered by wiring issues, poor connections, or a malfunction in the control module input power 'B' circuit.

3. How can I diagnose the U3507 code in my Buick?

- Diagnosing the U3507 code involves inspecting the wiring and connections related to the control module input power 'B' circuit, as well as testing the control module itself for any faults.

4. What are the possible repair options for OBDII code U3507 in a Buick?

- Repair options may include repairing or replacing damaged wiring, ensuring proper connections, and potentially replacing the control module if necessary.

5. Can I drive my Buick with the U3507 code present?

- It is not recommended to drive your Buick with the U3507 code present, as it can lead to further damage to the vehicle and potentially unsafe driving conditions.

6. How serious is the U3507 OBDII code in a Buick?

- The U3507 code should be addressed promptly as it can affect the overall performance and reliability of your Buick.

7. Are there any DIY tips for fixing the U3507 code in a Buick?

- DIY tips may include checking for loose connections, inspecting the wiring for damage, and ensuring all components related to the control module input power 'B' circuit are functioning properly.

8. How much does it cost to repair the U3507 code in a Buick?

- Repair costs for the U3507 code can vary depending on the extent of the issue and whether any components need to be replaced. It is recommended to consult with a mechanic for an accurate estimate.

9. Can a faulty battery cause the U3507 code to appear in a Buick?

- Yes, a faulty battery or issues with the power supply to the control module can potentially trigger the U3507 code in a Buick.

10. Is it necessary to reset the OBDII system after repairing the U3507 code in a Buick?

- It is recommended to reset the OBDII system after repairing the U3507 code to clear the error code and ensure proper functionality of the vehicle's control module.