AutoCodes – Buick – U209E Buick

U209E Buick Code - Object Detection Control Module High Speed Communication Enable Circuit 1

Quick Answer

The Active Safety Control Module activates the object detection ignition circuit when the ignition is ON. Common causes include Faulty Active Safety Control Module, Active Safety Control Module harness is open or shorted, Active Safety 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: U209E Buick indicates Object Detection Control Module High Speed Communication Enable Circuit 1.
Common causes: Common causes include Faulty Active Safety Control Module, Active Safety Control Module harness is open or shorted, Active Safety 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 587

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 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U209E Buick Description

The Active Safety Control Module activates the object detection ignition circuit when the ignition is ON. The object detection ignition circuit wakes up the devices for serial data bus communication. The Diagnostic Trouble Code (DTC) will set when the Active Safety Control Module senses a short to ground on the object detection ignition circuit.

OBDII Code U209E Buick - Object Detection Control Module High Speed Communication Enable Circuit 1 - AutoCodes.com — U209E Buick Code - Object Detection Control Module High Speed Communication Enable Circuit 1

What does this mean?

What are the Possible Causes of the DTC U209E Buick?

Faulty Active Safety Control Module
Active Safety Control Module harness is open or shorted
Active Safety Control Module circuit poor electrical connection

How to Fix the DTC U209E 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 U209E 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.

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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 U209E Buick Code

1. What are the common symptoms of OBDII code U209E in a Buick?

The common symptoms include issues with the object detection system, such as malfunctioning parking sensors, blind spot monitoring, or rear cross-traffic alert systems.

2. What can cause the U209E code to appear in a Buick?

The U209E code usually indicates a problem with the Object Detection Control Module's high-speed communication enable circuit 1. This can be caused by wiring issues, a faulty control module, or a communication network problem.

3. How can I diagnose the U209E code in my Buick?

To diagnose the U209E code, it is recommended to perform a thorough inspection of the wiring related to the Object Detection Control Module, check for any loose connections, and use a diagnostic scanner to analyze the communication network.

4. Can I still drive my Buick with the U209E code present?

While it may be possible to drive the vehicle with the U209E code, it is not recommended as the object detection system may not function properly, potentially compromising safety features like parking assistance and blind spot monitoring.

5. How do I repair the U209E code in my Buick?

Repairing the U209E code typically involves addressing the root cause of the communication issue, which may include repairing or replacing damaged wiring, fixing loose connections, or replacing the Object Detection Control Module if necessary.

6. Is the U209E code a serious issue in a Buick?

The U209E code should be addressed promptly as it affects the proper functioning of the object detection system in your Buick, which can impact safety and convenience features.

7. Can I reset the U209E code in my Buick without fixing the underlying issue?

While you can clear the code with a diagnostic scanner, it is recommended to address the underlying problem causing the U209E code to prevent it from reoccurring.

8. Can extreme weather conditions trigger the U209E code in a Buick?

Extreme weather conditions such as excessive heat or moisture can potentially contribute to wiring issues or electrical problems that may trigger the U209E code in a Buick.

9. Will fixing the U209E code require professional assistance?

Depending on your experience with automotive diagnostics and repairs, fixing the U209E code may require professional assistance, especially when dealing with complex wiring or control module issues.

10. How can I prevent the U209E code from recurring in my Buick?

To prevent the U209E code from recurring, it is essential to perform regular maintenance checks on the object detection system, keep an eye on any warning signs, and address any issues promptly to avoid further complications.