AutoCodes – Generic – U3507

U3507 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 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,726

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC U3507?

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?

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 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 code?

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

Need Help with the Code?

Get the U3507 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U3507 Buick — Control Module Input Power 'B' Circuit Intermittent/Erratic
U3507 Cadillac — Control Module Input Power 'B' Circuit Intermittent/Erratic
U3507 Chevrolet — Control Module Input Power 'B' Circuit Intermittent/Erratic
U3507 GMC — Control Module Input Power 'B' Circuit Intermittent/Erratic

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 Code

1. What are common symptoms of OBDII code U3507?

- Common symptoms include intermittent or erratic engine performance, stalling, rough idling, and illuminated Check Engine light.

2. What does the OBDII code U3507 mean?

- U3507 indicates an intermittent or erratic issue with the control module input power 'B' circuit, which could affect the operation of various vehicle components.

3. What are possible causes of code U3507?

- Potential causes of U3507 include faulty wiring or connectors, a damaged control module, a weak battery, or issues with the power supply to the control module.

4. How can I diagnose U3507?

- Diagnosing U3507 typically involves inspecting the wiring and connectors related to the control module, testing the battery voltage, and using a diagnostic scanner to check for related trouble codes.

5. Can I drive my vehicle with code U3507?

- It is not recommended to drive your vehicle with code U3507 present, as it may lead to performance issues or potential damage to other components.

6. How can I repair OBDII code U3507?

- Repairing U3507 may involve addressing any wiring or connector issues, replacing the control module if necessary, ensuring a stable power supply, and clearing the trouble code with a diagnostic tool.

7. Is it safe to reset the trouble code U3507 and continue driving?

- While resetting the trouble code may temporarily turn off the Check Engine light, it is important to address the underlying issue causing code U3507 to prevent further problems.

8. Can a weak car battery cause code U3507?

- Yes, a weak or failing car battery can potentially cause code U3507 by not providing a stable power supply to the control module.

9. Will code U3507 affect my vehicle's fuel efficiency?

- Yes, code U3507 can impact your vehicle's fuel efficiency if it leads to engine performance issues or inefficient operation of components controlled by the affected circuit.

10. How long does it typically take to repair OBDII code U3507?

- The repair time for U3507 can vary depending on the specific cause and complexity of the issue, but it may range from a quick fix to a more involved repair requiring professional assistance.