C1251 2018 GMC Sierra Code - Lateral 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
- C1251 2018 GMC Sierra indicates Lateral 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 C1251 2018 GMC Sierra Description
What are the Possible Causes of the DTC C1251 2018 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 C1251 2018 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 C1251 2018 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.
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Frequently Asked Questions about C1251 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code C1251 in a 2018 GMC Sierra related to the Lateral Acceleration Sensor Performance?
- Common symptoms include the stability control system warning light illuminating on the dashboard, issues with the vehicle's traction control system, and compromised handling and stability while driving.
2. What could be the possible causes of OBDII code C1251 in a 2018 GMC Sierra indicating a problem with the Lateral Acceleration Sensor Performance?
- Potential causes may include a malfunctioning lateral acceleration sensor, damaged wiring or connectors associated with the sensor, or a communication error within the vehicle's network system.
3. How can I diagnose and troubleshoot OBDII code C1251 in my 2018 GMC Sierra linked to the Lateral Acceleration Sensor Performance?
- Diagnosis involves using a professional OBDII scanner to retrieve the specific fault code, inspecting the lateral acceleration sensor and its connections for any visible damage, and conducting a thorough inspection of the vehicle's stability control system components.
4. Is it safe to continue driving my 2018 GMC Sierra with OBDII code C1251 related to the Lateral Acceleration Sensor Performance?
- It is not recommended to drive the vehicle with this code active, as it can compromise the stability and handling of the vehicle, potentially leading to unsafe driving conditions. It is best to address the issue promptly.
5. Can I reset OBDII code C1251 in my 2018 GMC Sierra without addressing the underlying issue with the Lateral Acceleration Sensor Performance?
- While you can clear the fault code using an OBDII scanner, it is essential to address the root cause of the problem to prevent the code from reoccurring and ensure the vehicle's safety and performance.
6. Are there any DIY repair tips for fixing OBDII code C1251 in a 2018 GMC Sierra related to the Lateral Acceleration Sensor Performance?
- DIY repair tips may include checking and cleaning the sensor connections, inspecting for any visible damage or corrosion, and ensuring proper alignment and mounting of the lateral acceleration sensor.
7. How much does it typically cost to repair OBDII code C1251 in a 2018 GMC Sierra associated with the Lateral Acceleration Sensor Performance?
- The cost of repair can vary depending on the extent of the issue, the need for sensor replacement, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.
8. Can extreme weather conditions or rough terrain trigger OBDII code C1251 in a 2018 GMC Sierra related to the Lateral Acceleration Sensor Performance?
- Yes, extreme weather conditions or rough terrain can potentially affect the performance of the lateral acceleration sensor and trigger the fault code. It is essential to drive cautiously in such conditions to prevent sensor damage.
9. How long does it usually take to repair OBDII code C1251 in a 2018 GMC Sierra caused by issues with the Lateral Acceleration Sensor Performance?
- The repair time can vary depending on the complexity of the issue and the availability of replacement parts. It is recommended to consult with a professional mechanic to get an accurate timeframe for the repair.
10. Can a faulty lateral acceleration sensor impact other systems in a 2018 GMC Sierra besides triggering OBDII code C1251 related to Lateral Acceleration Sensor Performance?
- Yes, a faulty lateral acceleration sensor can potentially impact other systems such as the traction control system, stability control system, and overall vehicle handling and safety. It is crucial to address the issue promptly to prevent further complications.
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