C1251 GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC C1251 GMC?
- 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 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 C1251 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 C1251 GMC code?
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Information for Specific GMC Models
- C1251 2014 GMC Sierra — Lateral Acceleration Sensor Performance
- C1251 2015 GMC Sierra — Lateral Acceleration Sensor Performance
- C1251 2016 GMC Sierra — Lateral Acceleration Sensor Performance
- C1251 2017 GMC Sierra — Lateral Acceleration Sensor Performance
- C1251 2018 GMC Sierra — Lateral Acceleration Sensor Performance
Frequently Asked Questions about C1251 GMC Code
1. What are the common symptoms of OBDII code C1251 GMC (Lateral Acceleration Sensor Performance)?
- Common symptoms include the ABS light being illuminated on the dashboard, potential traction control issues, and inaccurate readings of lateral acceleration.
2. What could cause OBDII code C1251 GMC to trigger?
- Possible causes include a faulty lateral acceleration sensor, damaged wiring or connectors related to the sensor, or issues with the sensor's calibration.
3. How can I diagnose the root cause of OBDII code C1251 GMC?
- Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault code, checking the lateral acceleration sensor for proper functionality, inspecting the sensor's wiring and connectors, and performing a calibration if necessary.
4. Can I drive my vehicle with OBDII code C1251 GMC active?
- It is generally not recommended to drive with this code active, as it can affect the performance of your vehicle's traction control system and compromise safety.
5. What are some repair tips for addressing OBDII code C1251 GMC?
- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the lateral acceleration sensor if faulty, and ensuring proper calibration of the sensor.
6. How much does it typically cost to repair OBDII code C1251 GMC?
- The cost of repairing this code can vary depending on the specific cause of the issue, but it may involve expenses for parts and labor, which could range from a few hundred to a few thousand dollars.
7. Is it possible to reset OBDII code C1251 GMC without repairing the issue?
- While clearing the fault code may temporarily turn off the warning light, it is important to address the underlying problem to prevent potential safety hazards and ensure proper functioning of your vehicle's systems.
8. Can extreme weather conditions trigger OBDII code C1251 GMC?
- Extreme weather conditions like heavy rain, snow, or extreme temperatures can sometimes affect the performance of sensors in the vehicle, potentially leading to the triggering of this fault code.
9. How long does it typically take to repair OBDII code C1251 GMC?
- The repair time for this code can vary depending on the extent of the issue and availability of parts, but it may take a few hours to a full day to diagnose, repair, and calibrate the lateral acceleration sensor.
10. Are there any preventive measures to avoid OBDII code C1251 GMC in the future?
- Regular maintenance checks, including inspecting the lateral acceleration sensor and its connections, can help prevent issues that may trigger this fault code.
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