AutoCodes – Buick – C1281 Buick

C1281 Buick Code - VSES Sensors Uncorrelated

Quick Answer

The Vehicle Stability Enhancement System (VSES) is activated by the Electronic Brake Control Module (EBCM) calculating the desired yaw rate and comparing it to the actual yaw rate input. Common causes include Faulty Steering Wheel Position Sensor (SWPS), Faulty Yaw Rate Sensor, Faulty Electronic Brake Control Module (EBCM). 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: C1281 Buick indicates VSES Sensors Uncorrelated.
Common causes: Common causes include Faulty Steering Wheel Position Sensor (SWPS), Faulty Yaw Rate Sensor, Faulty Electronic Brake Control Module (EBCM).
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 1,361

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 Sep 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1281 Buick Description

The Vehicle Stability Enhancement System (VSES) is activated by the Electronic Brake Control Module (EBCM) calculating the desired yaw rate and comparing it to the actual yaw rate input. The desired yaw rate is calculated from measured steering wheel position, vehicle speed, and lateral acceleration. The difference between the desired yaw rate and actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes too large, the EBCM will attempt to correct the vehicle's yaw motion by applying differential braking to the left or right front wheel.
The amount of differential braking applied to the left or right front wheel is based on both the yaw rate error and side slip rate error. The side slip rate error is a function of the lateral acceleration minus the product of the yaw rate and vehicle speed. The yaw rate error and side slip rate error are combined to produce the total delta velocity error. When the delta velocity error becomes too large and the VSES system activates, the drivers steering inputs combined with the differential braking will attempt to bring the delta velocity error toward zero.
The VSES activations generally occur during aggressive driving, in the turns or bumpy roads without much use of the accelerator pedal. When braking during VSES activation, the brake pedal will feel different than the ABS pedal pulsation. The brake pedal pulsates at a higher frequency during VSES activation.

OBDII Code C1281 Buick - VSES Sensors Uncorrelated - AutoCodes.com — C1281 Buick Code - VSES Sensors Uncorrelated

What does this mean?

What are the Possible Causes of the DTC C1281 Buick?

Faulty Steering Wheel Position Sensor (SWPS)
Faulty Yaw Rate Sensor
Faulty Electronic Brake Control Module (EBCM)
Yaw Rate Sensor harness is open or shorted
Yaw Rate Sensor circuit poor electrical connection

How to Fix the DTC C1281 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 C1281 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 C1281 Buick Code

1. What are the common symptoms of OBDII code C1281 in a Buick related to VSES Sensors Uncorrelated?

The common symptoms include the ABS warning light being illuminated on the dashboard, potential loss of traction control, and erratic braking behavior.

2. What are the possible causes of OBDII code C1281 in a Buick indicating VSES Sensors Uncorrelated?

Possible causes may include faulty wheel speed sensors, damaged wiring or connectors in the VSES system, a malfunctioning VSES module, or issues with the ABS system.

3. How can I diagnose the VSES Sensors Uncorrelated issue causing OBDII code C1281 in my Buick?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, conducting a visual inspection of the VSES components, checking the wiring and connectors for damage, and performing a thorough system test.

4. Is it safe to continue driving my Buick with OBDII code C1281 related to VSES Sensors Uncorrelated?

It is not recommended to drive the vehicle with this fault code present, as it can affect the vehicle's stability and braking performance. It is advisable to have the issue diagnosed and repaired promptly.

5. How can I reset the OBDII code C1281 for VSES Sensors Uncorrelated in my Buick?

Resetting the code can be done using an OBDII scanner by clearing the code after diagnosing and fixing the underlying issue. However, if the problem persists, the code will likely reappear.

6. Can a DIY enthusiast repair the VSES Sensors Uncorrelated issue causing OBDII code C1281 in a Buick?

While some basic troubleshooting steps can be performed by a knowledgeable DIY enthusiast, diagnosing and repairing VSES system issues may require specialized tools and expertise. It is advisable to consult a professional mechanic for complex repairs.

7. Are there any specific repair tips for addressing OBDII code C1281 Buick VSES Sensors Uncorrelated?

Some repair tips include checking for loose or damaged wiring, ensuring proper sensor alignment, inspecting the VSES module for faults, and conducting a comprehensive system reset after repairs.

8. How much does it typically cost to fix the VSES Sensors Uncorrelated issue triggering OBDII code C1281 in a Buick?

The cost of repairs can vary depending on the specific issue causing the fault code, the labor rates in your area, and the cost of parts. It is recommended to obtain estimates from qualified mechanics for an accurate cost assessment.

9. Can extreme weather conditions affect the VSES Sensors Uncorrelated issue associated with OBDII code C1281 in a Buick?

Extreme weather conditions, such as heavy rain, snow, or extreme temperatures, can potentially impact the performance of the VSES system and trigger fault codes like C1281. It is important to keep the system well-maintained in all weather conditions.

10. How long does it typically take to repair the VSES Sensors Uncorrelated issue causing OBDII code C1281 in a Buick?

The repair time can vary depending on the complexity of the issue, availability of parts, and the mechanic's workload. Simple repairs may take a few hours, while more complex issues could require a day or more to diagnose and fix.