C1254 2017 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 2017 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 2017 GMC Sierra Description
What are the Possible Causes of the DTC C1254 2017 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 2017 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 2017 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 2017 GMC Sierra code?
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Frequently Asked Questions about C1254 2017 GMC Sierra Code
1. What are the common symptoms of OBDII code C1254 in a 2017 GMC Sierra?
A: Common symptoms include the ABS warning light illuminating on the dashboard, potential loss of traction control functionality, and erratic braking behavior.
2. What does the OBDII code C1254 on a 2017 GMC Sierra indicate?
A: The code C1254 relates to the Longitudinal Acceleration Sensor Performance in the vehicle's Anti-Lock Braking System (ABS).
3. What are the possible causes of OBDII code C1254 in a 2017 GMC Sierra?
A: The code C1254 can be triggered by issues such as a faulty longitudinal acceleration sensor, damaged wiring or connectors, or a malfunction in the ABS control module.
4. How can I diagnose the Longitudinal Acceleration Sensor in a 2017 GMC Sierra?
A: Diagnosing the sensor involves checking its wiring and connectors for damage, inspecting for any physical damage to the sensor itself, and potentially using a diagnostic scanner to analyze sensor data.
5. Is it safe to continue driving a 2017 GMC Sierra with OBDII code C1254?
A: It is not recommended to drive the vehicle with an active C1254 code, as it may affect the ABS system's functionality and compromise vehicle safety.
6. Can the Longitudinal Acceleration Sensor issue be fixed without professional help?
A: Simple tasks like checking the sensor's wiring and connectors can be done by DIY enthusiasts, but for more complex issues or sensor replacement, professional help is recommended.
7. Are there any DIY repair tips for addressing OBDII code C1254 in a 2017 GMC Sierra?
A: DIY repair tips may include checking and cleaning the sensor connectors, ensuring proper sensor alignment, and inspecting for any visible damage to the sensor.
8. How much does it typically cost to repair OBDII code C1254 on a 2017 GMC Sierra?
A: The cost of repairing OBDII code C1254 can vary depending on the specific issue, but it may involve sensor replacement, which could range from $200 to $500 including parts and labor.
9. Can resetting the OBDII system clear the C1254 code in a 2017 GMC Sierra?
A: While resetting the system may temporarily clear the code, it is important to diagnose and address the underlying issue causing the C1254 code for a lasting repair.
10. How often does the Longitudinal Acceleration Sensor need to be replaced in a 2017 GMC Sierra?
A: The Longitudinal Acceleration Sensor typically doesn't need frequent replacement unless it is damaged or malfunctions, which may vary based on driving conditions and vehicle usage.
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