AutoCodes – Buick – U1653 Buick

U1653 Buick Code - Chassis Systems High Speed Communication Enable Circuit

Quick Answer

The Body Control Module (BCM) activates the ignition circuit when the vehicle power mode is in ACCESSORY mode or Ignition ON/Vehicle In Service mode. Common causes include Faulty Module that is not communicating, Module harness is open or shorted, 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: U1653 Buick indicates Chassis Systems High Speed Communication Enable Circuit.
Common causes: Common causes include Faulty Module that is not communicating, Module harness is open or shorted, 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 872

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 04, 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 U1653 Buick Description

The Body Control Module (BCM) activates the ignition circuit when the vehicle power mode is in ACCESSORY mode or Ignition ON/Vehicle In Service mode. The ignition circuit wakes up the devices for serial data bus communication. The Diagnostic Trouble Code (DTC) will set when the device setting the DTC has attempted to establish communications on the chassis high-speed GMLAN serial data circuits more than 3 times.

OBDII Code U1653 Buick - Chassis Systems High Speed Communication Enable Circuit - AutoCodes.com — U1653 Buick Code - Chassis Systems High Speed Communication Enable Circuit

What does this mean?

What are the Possible Causes of the DTC U1653 Buick?

Faulty Module that is not communicating
Module harness is open or shorted
Module circuit poor electrical connection

How to Fix the DTC U1653 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 U1653 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 U1653 Buick code?

Need more information on how to fix the U1653 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1653 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 U1653 Buick Code

1. What are the common symptoms of OBDII code U1653 in a Buick related to the Chassis Systems High Speed Communication Enable Circuit?

- Common symptoms include issues with the stability control system, traction control system, and other chassis-related systems not functioning properly.

2. What could be the possible causes of OBDII code U1653 in a Buick?

- Possible causes may include a faulty high-speed communication circuit, damaged wiring or connectors, a malfunctioning chassis control module, or a software issue.

3. How can I diagnose OBDII code U1653 in my Buick?

- Diagnosis involves using a professional OBDII scanner to read the code, checking the chassis control module for any stored codes, inspecting the wiring and connectors for damage, and performing a thorough system test.

4. Can I continue driving my Buick with OBDII code U1653 present?

- It is not recommended to drive your Buick with this code present, as it can affect the proper functioning of crucial chassis systems, potentially compromising safety and performance.

5. What are some repair tips for fixing OBDII code U1653 in a Buick?

- Repair tips may include checking and repairing any damaged wiring or connectors, ensuring the chassis control module is functioning correctly, and updating software if necessary.

6. Is it possible to reset OBDII code U1653 in a Buick without fixing the underlying issue?

- While you can clear the code temporarily, it is essential to address the root cause to prevent the code from reoccurring and ensure the proper functioning of the chassis systems.

7. Can a DIY enthusiast repair OBDII code U1653 in a Buick, or should it be done by a professional mechanic?

- Repairing this code may require advanced diagnostic tools and expertise, so it is recommended to have a professional mechanic diagnose and fix the issue to ensure it is properly resolved.

8. Are there any recalls or technical service bulletins related to OBDII code U1653 in Buick vehicles?

- It is advisable to check with your Buick dealership or refer to online resources for any recalls or technical service bulletins related to this specific OBDII code in your vehicle.

9. How much can I expect to pay for repairing OBDII code U1653 in a Buick?

- The cost of repair can vary depending on the underlying cause and the labor rates of the repair shop. It is best to obtain quotes from multiple mechanics to compare prices.

10. Will fixing OBDII code U1653 improve the overall performance and safety of my Buick?

- Yes, addressing this code will help restore the proper functioning of chassis systems, ensuring optimal performance and safety while driving your Buick.