Engine-CodesGMC – C1250 GMC

C1250 GMC Code - Lateral Acceleration Sensor Circuit High Voltage

Quick Answer

The C1250 GMC code indicates a problem with the lateral acceleration sensor circuit, specifically that the voltage is too high. Common causes include Faulty lateral acceleration sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination affecting the sensor or circuit. 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
C1250 GMC indicates Lateral Acceleration Sensor Circuit High Voltage.
Common causes
Common causes include Faulty lateral acceleration sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination affecting the sensor or circuit.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code C1250 GMC Description

The C1250 GMC code indicates a problem with the lateral acceleration sensor circuit, specifically that the voltage is too high. The lateral acceleration sensor is a crucial component of the vehicle's stability control system, also known as the Electronic Stability Control (ESC) system. This sensor measures the vehicle's lateral acceleration, which is the force acting on the vehicle from side to side during cornering or swerving. The ESC system uses this information to help maintain stability and prevent skidding or loss of control.

OBDII Code C1250 GMC - Lateral Acceleration Sensor Circuit High Voltage
C1250 GMC Code - Lateral Acceleration Sensor Circuit High Voltage

Common Causes of C1250 GMC

  1. Faulty lateral acceleration sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or contamination affecting the sensor or circuit.
  4. Electrical issues such as a short circuit or open circuit in the circuit.
  5. Issues with the ESC module or related components.

Symptoms of C1250 GMC

  1. Illumination of the ESC or traction control warning light on the dashboard.
  2. Increased difficulty in maintaining control of the vehicle during cornering.
  3. Unusual noises or sensations coming from the ESC system during driving.
  4. Reduced responsiveness or effectiveness of the ESC system in preventing skidding.

How to Fix C1250 GMC

  1. Begin by conducting a thorough inspection of the lateral acceleration sensor and its circuitry to identify any visible damage or issues.
  2. Test the sensor's voltage output using a multimeter to determine if it is within the specified range.
  3. Check the wiring and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  4. Clear the diagnostic trouble codes from the vehicle's system using a scan tool and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, consider replacing the lateral acceleration sensor or consulting a professional technician for further diagnosis and repair.

Cost to Fix C1250 GMC

The cost of repairing a lateral acceleration sensor circuit high voltage issue can vary depending on the specific cause of the problem and the vehicle's make and model. In general, the cost of replacing a faulty lateral acceleration sensor can range from $150 to $300, including parts and labor. Additional costs may apply if wiring or connectors need to be repaired or replaced. It is advisable to consult with a trusted auto repair shop to obtain a more accurate estimate based on the individual circumstances of the vehicle. Keep in mind that diagnostic time and labor rates can vary, so it's recommended to inquire about these factors when seeking a repair quote.

Tech Notes for C1250 GMC









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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 C1250 GMC Code

1. What are the common symptoms of OBDII code C1250 GMC (Lateral Acceleration Sensor Circuit High Voltage)?

- Common symptoms include the traction control warning light illuminating on the dashboard, stability control issues, and potential loss of handling control.

2. What causes the OBDII code C1250 GMC to appear?

- The code C1250 typically indicates a malfunction in the lateral acceleration sensor circuit, which could be caused by a faulty sensor, damaged wiring, or poor electrical connections.

3. How can I diagnose the issue related to OBDII code C1250 GMC?

- Diagnosis involves inspecting the lateral acceleration sensor, checking the sensor's wiring for damage, and testing the sensor's voltage output using a multimeter.

4. What are the repair options for fixing OBDII code C1250 GMC?

- Repair options include replacing the faulty lateral acceleration sensor, repairing damaged wiring, and ensuring proper electrical connections are made.

5. Can I drive my vehicle with the OBDII code C1250 GMC present?

- It is not recommended to drive the vehicle with the code C1250 GMC present, as it can affect the vehicle's stability control and handling performance.

6. How much does it typically cost to repair OBDII code C1250 GMC?

- The cost of repairing OBDII code C1250 GMC can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Are there any DIY tips for troubleshooting OBDII code C1250 GMC?

- DIY tips include checking for loose or damaged wiring around the lateral acceleration sensor, ensuring proper sensor connections, and clearing the code to see if it returns.

8. Can a faulty lateral acceleration sensor cause other issues in the vehicle?

- Yes, a faulty lateral acceleration sensor can affect the vehicle's stability control system, traction control system, and overall handling performance.

9. How long does it take to repair OBDII code C1250 GMC?

- The repair time for OBDII code C1250 GMC can vary depending on the extent of the issue, but it typically takes a few hours to complete the necessary repairs.

10. Is it important to address OBDII code C1250 GMC promptly?

- Yes, it is important to address OBDII code C1250 GMC promptly to ensure the vehicle's safety systems are functioning properly and to prevent potential handling issues while driving.

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