U1173 Buick Code - Lost Communications With Power Roof Module
Quick Answer
The U1173 Buick code indicates that there is a communication error between the vehicle's onboard computer system and the Power Roof Module. Common causes include Loose or corroded wiring connections, Faulty Power Roof Module, Software malfunction in the vehicle's computer system. 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
- U1173 Buick indicates Lost Communications With Power Roof Module.
- Common causes
- Common causes include Loose or corroded wiring connections, Faulty Power Roof Module, Software malfunction in the vehicle's computer system.
- 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 U1173 Buick Description
The U1173 Buick code indicates that there is a communication error between the vehicle's onboard computer system and the Power Roof Module. The Power Roof Module is responsible for controlling the operation of the power roof or convertible top in the vehicle. When communication is lost with this module, it can lead to issues with the proper functioning of the power roof system.
Common Causes of U1173 Buick
- Loose or corroded wiring connections
- Faulty Power Roof Module
- Software malfunction in the vehicle's computer system
- Physical damage to wiring harness
- Water damage to the module or wiring
Symptoms of U1173 Buick
- Power roof not opening or closing properly
- Power roof getting stuck halfway through operation
- Dashboard warning light related to power roof system
- Inability to control power roof from the driver's seat
How to Fix U1173 Buick
- Begin by checking and tightening all wiring connections related to the Power Roof Module.
- Inspect the wiring harness for any signs of damage or corrosion, and repair or replace as needed.
- Test the Power Roof Module for proper functioning and replace if it is found to be faulty.
- Clear the diagnostic trouble codes from the vehicle's computer system and test the power roof operation.
- If the issue persists, consult with a professional mechanic or dealership for further diagnosis and repair.
Cost to Fix U1173 Buick
The typical repair costs for addressing a U1173 Buick code can range from $200 to $500, depending on the specific cause of the communication error and the required repairs. This estimate includes parts and labor. However, it is important to note that actual costs can vary based on factors such as location, vehicle make and model, and the rates of the auto repair shop. Diagnostic time and labor rates typically range between $80 and $150 per hour, with rates potentially higher at dealerships or in metropolitan areas, and lower at independent shops. It is recommended to obtain quotes from local repair shops for a more accurate estimate.
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Frequently Asked Questions about U1173 Buick Code
1. What does OBDII code U1173 mean on a Buick?
U1173 indicates a communication issue with the Power Roof Module, meaning the module is not sending or receiving data properly over the vehicle's network.
2. What are the common symptoms of code U1173 in a Buick?
Symptoms may include a non-functional sunroof, intermittent operation, warning lights on the dashboard, or other electrical malfunctions related to the roof system.
3. What causes the U1173 code to appear in a Buick?
Common causes include a faulty Power Roof Module, damaged wiring or connectors, network communication issues, or a failing Body Control Module (BCM).
4. Can a weak battery cause the U1173 code?
Yes, a weak or failing battery can disrupt communication between modules and trigger the U1173 code.
5. How do I diagnose code U1173 in my Buick?
Start by checking the wiring and connectors for damage or corrosion near the Power Roof Module. Use a scan tool to monitor network communication and test the module's functionality.
6. Can I drive my Buick with the U1173 code?
Yes, but the sunroof or power roof system may not function properly, and ignoring the issue could lead to further electrical problems.
7. How do I fix the U1173 code on my Buick?
Repairs may include fixing or replacing damaged wiring, cleaning corroded connectors, reprogramming the Power Roof Module, or replacing it if it's defective.
8. How much does it cost to fix a U1173 code in a Buick?
The cost depends on the root cause. Simple repairs like fixing wiring or connectors may cost under $100, while module replacement can range from $300 to $800 or more.
9. Can a software update resolve the U1173 code?
In some cases, a software update or reprogramming of the Power Roof Module or BCM can resolve the issue if it’s caused by a software glitch.
10. Do I need a professional to fix the U1173 code?
While basic checks like inspecting wiring can be done at home, diagnosing and repairing communication issues often require specialized tools and expertise, so a professional is recommended.
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