AutoCodes – Chevrolet – U3500 Chevrolet

U3500 Chevrolet Code - Control Module Input Power 'A' Circuit Range/Performance

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: U3500 Chevrolet indicates Control Module Input Power 'A' Circuit Range/Performance.
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 804

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 U3500 Chevrolet 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 U3500 Chevrolet - Control Module Input Power 'A' Circuit Range/Performance - AutoCodes.com — U3500 Chevrolet Code - Control Module Input Power 'A' Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC U3500 Chevrolet?

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

How to Fix the DTC U3500 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 U3500 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 U3500 Chevrolet code?

Need more information on how to fix the U3500 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U3500 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 U3500 Chevrolet Code

1. What are the common symptoms of OBDII code U3500 in a Chevrolet?

- Common symptoms include issues with the vehicle's electrical system, such as intermittent power loss, unusual dashboard warning lights, and erratic behavior of electronic components.

2. What can cause the OBDII code U3500 to trigger in a Chevrolet?

- The code U3500 is typically triggered by issues related to the control module input power 'A' circuit, such as damaged wiring, loose connections, or a failing control module.

3. How can I diagnose the OBDII code U3500 in my Chevrolet?

- Diagnosing the U3500 code usually involves using a scan tool to read the code, checking for any visible signs of wiring damage, and testing the control module for proper voltage and connectivity.

4. What are the possible repair options for fixing the OBDII code U3500 in a Chevrolet?

- Repair options may include repairing or replacing damaged wiring, ensuring secure connections, and potentially replacing the control module if it is deemed faulty.

5. Can I drive my Chevrolet with the OBDII code U3500 present?

- It is not recommended to drive the vehicle with the U3500 code present, as it can lead to further electrical issues and potential safety hazards. It is best to address the problem promptly.

6. How much does it typically cost to repair the OBDII code U3500 in a Chevrolet?

- The cost of repairing the U3500 code can vary depending on the extent of the issue, the parts needed for repair, and labor costs. It is advisable to consult a mechanic for an accurate estimate.

7. Are there any preventive maintenance tips to avoid the OBDII code U3500 in a Chevrolet?

- To prevent the U3500 code, it is essential to regularly inspect the vehicle's electrical system, ensure proper wiring connections, and address any warning signs of electrical issues promptly.

8. Can a DIY enthusiast fix the OBDII code U3500 issue in a Chevrolet?

- While some basic inspections and repairs may be possible for a DIY enthusiast, diagnosing and repairing the U3500 code may require specialized tools and expertise, so professional assistance is recommended.

9. How urgent is it to address the OBDII code U3500 in a Chevrolet?

- It is advisable to address the U3500 code as soon as possible to prevent further damage to the vehicle's electrical system and ensure the overall safety and performance of the vehicle.

10. Will resetting the OBDII code U3500 in a Chevrolet make it go away permanently?

- Resetting the code may temporarily remove the warning light, but if the underlying issue causing the U3500 code is not fixed, the code is likely to reappear. It is crucial to diagnose and repair the root cause of the problem.