AutoCodes – GMC – C0287 GMC

C0287 GMC Code - Longitudinal Acceleration Sensor Signal

Quick Answer

The Yaw Rate, Lateral Acceleration, and Longitudinal Acceleration Sensors are combined into one Multi-Axis Acceleration Sensor, internal to the Inflatable Restraint Sensing and Diagnostic Module. Common causes include Faulty Longitudinal Acceleration Sensor (Internal to the Inflatable Restraint Sensing and Diagnostic Module), Longitudinal Acceleration Sensor harness is open or shorted, Longitudinal Acceleration Sensor 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: C0287 GMC indicates Longitudinal Acceleration Sensor Signal.
Common causes: Common causes include Faulty Longitudinal Acceleration Sensor (Internal to the Inflatable Restraint Sensing and Diagnostic Module), Longitudinal Acceleration Sensor harness is open or shorted, Longitudinal Acceleration Sensor 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 7,637

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 28, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0287 GMC Description

The Yaw Rate, Lateral Acceleration, and Longitudinal Acceleration Sensors are combined into one Multi-Axis Acceleration Sensor, internal to the Inflatable Restraint Sensing and Diagnostic Module. The Multi-Axis Acceleration Sensor communicates via serial data with the Electronic Brake Control Module (EBCM). The Electronic Brake Control Module activates the stability control function depending on the Multi-Axis Acceleration Sensor input. The Inflatable Restraint Sensing and Diagnostic Module uses the Multi-Axis Acceleration Sensor to determine if the vehicle is in a rollover or near collision incident. The Diagnostic Trouble Code (DTC) will be set if the Longitudinal Acceleration Sensor signal is out of the specified range.

OBDII Code C0287 GMC - Longitudinal Acceleration Sensor Signal - AutoCodes.com — C0287 GMC Code - Longitudinal Acceleration Sensor Signal

What does this mean?

What are the Possible Causes of the DTC C0287 GMC?

Faulty Longitudinal Acceleration Sensor (Internal to the Inflatable Restraint Sensing and Diagnostic Module)
Longitudinal Acceleration Sensor harness is open or shorted
Longitudinal Acceleration Sensor circuit poor electrical connection
Faulty Electronic Brake Control Module (EBCM)

How to Fix the DTC C0287 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 C0287 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.

Need more information about the C0287 GMC code?

Need more information on how to fix the C0287 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific GMC Models

C0287 2014 GMC Sierra — Longitudinal Acceleration Sensor Signal
C0287 2015 GMC Sierra — Longitudinal Acceleration Sensor Signal
C0287 2016 GMC Sierra — Longitudinal Acceleration Sensor Signal
C0287 2017 GMC Sierra — Longitudinal Acceleration Sensor Signal
C0287 2018 GMC Sierra — Longitudinal Acceleration Sensor Signal

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 C0287 GMC Code

What does the OBDII code C0287 mean for my GMC vehicle?

The C0287 code indicates a problem with the longitudinal acceleration sensor signal, which is responsible for measuring the vehicle's acceleration in the longitudinal direction.

What are the common symptoms associated with the C0287 code?

Common symptoms include the illumination of the check engine light, possible issues with traction control or stability control systems, and erratic behavior of the vehicle's handling.

What can cause the C0287 code to trigger?

Causes can include a faulty longitudinal acceleration sensor, damaged wiring or connectors, issues with the vehicle's stability control system, or a malfunctioning engine control module (ECM).

How can I diagnose the C0287 code?

To diagnose the C0287 code, start by using an OBD-II scanner to confirm the code. Then, inspect the wiring and connectors related to the longitudinal acceleration sensor for damage. Checking the sensor itself for proper operation is also essential.

What is the typical repair for a C0287 code?

Repairs typically involve replacing the faulty longitudinal acceleration sensor, repairing any damaged wiring or connectors, or reprogramming/replacing the ECM if necessary.

Can I drive my GMC with the C0287 code active?

While it may be possible to drive with the C0287 code active, it is not recommended as it can affect vehicle stability and traction control, potentially leading to unsafe driving conditions.

How can I reset the C0287 code after repairs?

After addressing the underlying issue, you can reset the C0287 code by using an OBD-II scanner to clear the codes or by disconnecting the vehicle's battery for a few minutes.

Will the C0287 code cause my vehicle to fail emissions testing?

Yes, the presence of a C0287 code can cause your vehicle to fail emissions testing since it indicates a problem with the vehicle's safety and performance systems.

Is it necessary to replace the longitudinal acceleration sensor if I have the C0287 code?

Not always. It is crucial to perform a thorough diagnosis first, as the issue may also stem from wiring problems or other components rather than just the sensor itself.