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U0125 Cadillac Code - Lost Communication with Multi-Axis Acceleration Sensor Module

Quick Answer

Modules connected to the high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Multi-Axis Acceleration Sensor Module, Multi-Axis Acceleration Sensor Module harness is open or shorted, Multi-Axis Acceleration Sensor 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: U0125 Cadillac indicates Lost Communication with Multi-Axis Acceleration Sensor Module.
Common causes: Common causes include Faulty Multi-Axis Acceleration Sensor Module, Multi-Axis Acceleration Sensor Module harness is open or shorted, Multi-Axis Acceleration Sensor 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 3,917

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 Mar 25, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0125 Cadillac Description

Modules connected to the high-speed General Motor Local Area Network (GMLAN) 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 need to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, and some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Multi-Axis Acceleration Sensor Module has not been received.

OBDII Code U0125 Cadillac - Lost Communication with Multi-Axis Acceleration Sensor Module - AutoCodes.com — U0125 Cadillac Code - Lost Communication with Multi-Axis Acceleration Sensor Module

What does this mean?

What are the Possible Causes of the DTC U0125 Cadillac?

Faulty Multi-Axis Acceleration Sensor Module
Multi-Axis Acceleration Sensor Module harness is open or shorted
Multi-Axis Acceleration Sensor Module circuit poor electrical connection

How to Fix the DTC U0125 Cadillac?

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 U0125 Cadillac 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 U0125 Cadillac Code

1. What are the common symptoms of OBDII code U0125 in a Cadillac related to the Multi-Axis Acceleration Sensor Module?

The common symptoms include the check engine light illuminating, traction control system malfunctioning, and potential issues with the vehicle's stability control.

2. What can cause the OBDII code U0125, indicating lost communication with the Multi-Axis Acceleration Sensor Module in a Cadillac?

Possible causes include a faulty Multi-Axis Acceleration Sensor Module, damaged wiring or connectors, a software glitch, or issues with the vehicle's communication network.

3. How can I diagnose the U0125 code in my Cadillac?

Diagnosing the U0125 code involves using an OBDII scanner to retrieve the code, inspecting the Multi-Axis Acceleration Sensor Module and its connections, checking for any damaged wiring, and testing the communication network.

4. Can I continue driving my Cadillac with the U0125 code present?

It is not recommended to continue driving the vehicle with the U0125 code active, as it can affect the performance of the traction control and stability systems, potentially compromising safety.

5. What are some repair tips for resolving the U0125 code in a Cadillac?

Repair tips include checking and repairing any damaged wiring or connectors, ensuring proper connection of the Multi-Axis Acceleration Sensor Module, and updating the software if needed.

6. How much does it typically cost to fix the U0125 code in a Cadillac?

The cost of fixing the U0125 code can vary depending on the underlying issue. It could range from a simple wiring repair to replacing the Multi-Axis Acceleration Sensor Module, so it's advisable to get a diagnostic assessment from a qualified mechanic.

7. Can a DIY enthusiast fix the U0125 code issue in a Cadillac?

Depending on your skill level and access to the necessary tools, a DIY enthusiast may be able to address simple causes like checking connections or wiring. However, more complex issues may require professional diagnosis and repair.

8. Will resetting the trouble codes make the U0125 code disappear permanently?

Simply resetting the trouble codes may temporarily clear the U0125 code, but if the underlying issue causing the lost communication with the Multi-Axis Acceleration Sensor Module is not addressed, the code is likely to reappear.

9. How long does it typically take to repair the U0125 code in a Cadillac?

The repair time for the U0125 code can vary based on the specific cause and complexity of the issue. Simple fixes may take a short time, while more involved repairs could require several hours or more.

10. Is the U0125 code specific to Cadillac vehicles, or can it occur in other makes and models?

While the U0125 code specifically references Cadillac vehicles, similar codes related to lost communication with sensor modules can occur in other makes and models, each with its unique diagnostic and repair processes.