AutoCodes – Chevrolet – U1653 Chevrolet

U1653 Chevrolet 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 Chevrolet 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.

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Code Popularity 611

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1653 Chevrolet 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 Chevrolet - Chassis Systems High Speed Communication Enable Circuit - AutoCodes.com — U1653 Chevrolet Code - Chassis Systems High Speed Communication Enable Circuit

What does this mean?

What are the Possible Causes of the DTC U1653 Chevrolet?

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

How to Fix the DTC U1653 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 U1653 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 U1653 Chevrolet code?

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

Need Help with the Code?

Get the U1653 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 U1653 Chevrolet Code

What does the OBDII code U1653 mean for a Chevrolet vehicle?

U1653 indicates a problem with the High Speed Communication Enable Circuit within the chassis systems, affecting communication between various modules.

What are common symptoms of the U1653 code?

Symptoms may include warning lights on the dashboard, malfunctioning electronic features, or issues with vehicle stability and handling.

What can cause the U1653 code to trigger?

Potential causes include damaged wiring or connectors, a faulty chassis control module, or issues with the vehicle's communication network.

How can I diagnose the U1653 code?

To diagnose U1653, check for additional diagnostic trouble codes (DTCs), inspect wiring and connectors for damage, and test the chassis control module for proper operation.

What repairs might be needed to fix the U1653 code?

Repairs may involve repairing or replacing damaged wiring, replacing the chassis control module, or reprogramming the module to restore communication.

Can I clear the U1653 code without fixing the issue?

While you can clear the code using an OBDII scanner, the code is likely to reappear if the underlying problem is not resolved.

Is it safe to drive a vehicle with the U1653 code?

Driving with the U1653 code may be unsafe, as it can affect the vehicle's handling and stability systems. It's best to diagnose and repair the issue promptly.

How can I prevent the U1653 code from recurring?

Regular vehicle maintenance, including checking electrical connections and ensuring modules are updated, can help prevent the recurrence of the U1653 code.

What tools do I need to troubleshoot the U1653 code?

Basic tools include an OBDII scanner to read codes, a multimeter for electrical testing, and basic hand tools for inspecting and repairing wiring and connectors.