AutoCodes – GMC – U1875 GMC

U1875 GMC Code - Drive Motor Control Module 1 Lost Communication With Battery Energy Control Module

Quick Answer

Modules connected to the Controller Area Network (CAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy 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: U1875 GMC indicates Drive Motor Control Module 1 Lost Communication With Battery Energy Control Module.
Common causes: Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy 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 535

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1875 GMC Description

Modules connected to the Controller Area Network (CAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. Each message contains the identification number of the transmitter module. A module with a CAN serial data circuits malfunction or which loses power during the current ignition cycle will have a Loss of Communication Diagnostic Trouble Code (DTC) set by other modules that depend on information from that failed module. If any of the CAN circuit are shorted to battery voltage, ground, or between them no communication is possible on the CAN serial data bus, a Diagnostic Trouble Code will set.

OBDII Code U1875 GMC - Drive Motor Control Module 1 Lost Communication With Battery Energy Control Module - AutoCodes.com — U1875 GMC Code - Drive Motor Control Module 1 Lost Communication With Battery Energy Control Module

What does this mean?

What are the Possible Causes of the DTC U1875 GMC?

Faulty Battery Energy Control Module
Battery Energy Control Module harness is open or shorted
Battery Energy Control Module circuit poor electrical connection

How to Fix the DTC U1875 GMC?

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 U1875 GMC 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 U1875 GMC Code

1. What are the common symptoms of OBDII code U1875 in a GMC vehicle?

The common symptoms include loss of power, reduced fuel efficiency, and the illumination of the Check Engine Light.

2. What could cause the OBDII code U1875 in a GMC vehicle?

This code is typically triggered when there is a communication breakdown between the Drive Motor Control Module 1 and the Battery Energy Control Module due to wiring issues, a faulty module, or software glitches.

3. How can I diagnose the OBDII code U1875 in my GMC vehicle?

Diagnosing this code usually involves using a professional OBDII scanner to retrieve the specific fault codes, checking the wiring connections between the modules, and testing the modules themselves for proper functionality.

4. Are there any DIY repair tips for fixing the U1875 code in a GMC vehicle?

Some DIY repair tips include inspecting the wiring harness for any visible damage, ensuring all connections are secure, and resetting the fault codes to see if they reoccur after the repair.

5. Can driving with the U1875 code present cause further damage to my GMC vehicle?

Continuing to drive with this code present can potentially lead to further damage to the drive motor control system or the battery energy control system, so it's recommended to address the issue promptly.

6. How much does it typically cost to repair the U1875 code in a GMC vehicle?

The cost of repairs can vary depending on the exact cause of the code, but it may range from a simple wiring repair to replacing a faulty control module, costing anywhere from $100 to $500 or more.

7. Is it safe to drive my GMC vehicle with the U1875 code if it seems to be running fine?

While the vehicle may seem to run fine with this code present, it's best to address the underlying issue promptly to prevent any potential long-term damage to the vehicle's systems.

8. Can a software update fix the U1875 code in a GMC vehicle?

In some cases, a software update provided by the manufacturer can resolve communication issues between modules and clear the U1875 code without the need for physical repairs.

9. How long does it usually take to repair the U1875 code in a GMC vehicle?

The repair time can vary depending on the exact cause of the code and the availability of parts, but it typically takes a few hours to a full day to diagnose and fix the issue.

10. Will the U1875 code reset on its own after the repair is completed?

After the repair is completed, the code may reset on its own once the vehicle is driven and the system performs a self-check. If the repair was successful, the code should not reappear.