C1254 2016 GMC Sierra Code - Longitudinal Acceleration Sensor Performance
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 Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission 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
- C1254 2016 GMC Sierra indicates Longitudinal Acceleration Sensor Performance.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission 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.
Code C1254 2016 GMC Sierra Description
What are the Possible Causes of the DTC C1254 2016 GMC Sierra?
- Faulty Transmission Control Module (TCM)
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
- Faulty Electronic Brake Control Module (EBCM)
How to Fix the DTC C1254 2016 GMC Sierra?
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 C1254 2016 GMC Sierra 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 C1254 2016 GMC Sierra code?
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Frequently Asked Questions about C1254 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code C1254 in a 2016 GMC Sierra?
- Common symptoms include the ABS warning light being illuminated on the dashboard, traction control issues, and potential stability control malfunctions.
2. What does the OBDII code C1254 for Longitudinal Acceleration Sensor Performance mean in a 2016 GMC Sierra?
- This code indicates a problem with the longitudinal acceleration sensor, which is responsible for measuring the vehicle's acceleration and deceleration in a straight line.
3. What are some possible causes of OBDII code C1254 in a 2016 GMC Sierra?
- Potential causes include a faulty longitudinal acceleration sensor, damaged wiring or connectors related to the sensor, or issues with the sensor's calibration.
4. How can I diagnose the issue causing OBDII code C1254 in my 2016 GMC Sierra?
- Diagnosis typically involves using a professional OBDII scanner to read the code, inspecting the longitudinal acceleration sensor and its connections, and conducting a thorough visual inspection for any visible damage.
5. What are the repair options for fixing OBDII code C1254 in a 2016 GMC Sierra?
- Repair options may include replacing the faulty longitudinal acceleration sensor, repairing damaged wiring or connectors, recalibrating the sensor, or seeking assistance from a certified mechanic for further diagnosis and repair.
6. Can I continue driving my 2016 GMC Sierra with OBDII code C1254 present?
- It is not recommended to continue driving with this code present, as it can affect the proper functioning of the vehicle's ABS, traction control, and stability control systems.
7. How much does it typically cost to repair OBDII code C1254 in a 2016 GMC Sierra?
- The cost of repairs can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
8. Are there any DIY tips for troubleshooting OBDII code C1254 in a 2016 GMC Sierra?
- While some basic inspections and visual checks can be done by DIY enthusiasts, diagnosing and repairing this code often requires specialized tools and expertise, so it is recommended to consult a professional mechanic.
9. How urgent is it to address OBDII code C1254 in a 2016 GMC Sierra?
- It is important to address this code promptly to ensure the proper functioning of safety systems like ABS and traction control. Ignoring the issue could potentially lead to safety risks while driving.
10. Can weather or road conditions trigger OBDII code C1254 in a 2016 GMC Sierra?
- Extreme weather or rough road conditions may not directly trigger this code, but they could exacerbate existing issues with the longitudinal acceleration sensor, leading to the code being triggered.
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