AutoCodesCadillac – C1251 Cadillac

C1251 Cadillac 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 Cadillac 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.
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Code Popularity 1,446
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 19, 2023
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Code C1251 Cadillac Description

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. The Multi-Axis Acceleration Sensor communicates with the Electronic Brake Control Module (EBCM) and Transmission Control Module (TCM) via serial data. The Electronic Brake Control Module activates the stability control function depending on the Multi-Axis Acceleration Sensor input. The Inflatable Restraint Sensing and Diagnostic Module uses the Multi-Axis Acceleration Sensor to determine if the vehicle is in a rollover or near collision incident. The Transmission Control Module sets this Diagnostic Trouble Code (DTC)s. The DTC will be set when the Transmission Control Module detects a fault that prevents it from performing a hill hold function.
OBDII Code C1251 Cadillac - Lateral Acceleration Sensor Performance - AutoCodes.com
C1251 Cadillac Code - Lateral Acceleration Sensor Performance

What are the Possible Causes of the DTC C1251 Cadillac?

  • 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 Cadillac?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1251 Cadillac 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 Cadillac code?

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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 C1251 Cadillac Code

1. What are the common symptoms of OBDII code C1251 in a Cadillac related to the Lateral Acceleration Sensor Performance?

- Common symptoms include the traction control light or stability control warning light illuminating on the dashboard, erratic handling or steering response, and potential loss of stability control features.

2. What are the possible causes of OBDII code C1251 in a Cadillac indicating Lateral Acceleration Sensor Performance issues?

- The code C1251 in a Cadillac can be triggered by a faulty lateral acceleration sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's calibration.

3. How can I diagnose the Lateral Acceleration Sensor to troubleshoot OBDII code C1251 in my Cadillac?

- To diagnose the lateral acceleration sensor, you can use a diagnostic scanner to read the trouble codes, perform sensor tests, and inspect the sensor and its connections for any visible damage or corrosion.

4. Is it safe to continue driving my Cadillac with the OBDII code C1251 related to Lateral Acceleration Sensor Performance?

- It is not recommended to continue driving your Cadillac with the code C1251 active, as it may affect the vehicle's stability control system and compromise safety. It is best to address the issue promptly.

5. Can a DIY enthusiast repair the Lateral Acceleration Sensor issue causing OBDII code C1251 in a Cadillac?

- While some DIY enthusiasts may have the skills to replace a faulty lateral acceleration sensor, diagnosing and calibrating the sensor properly may require specialized tools and knowledge. Professional help is recommended.

6. How much does it typically cost to repair the Lateral Acceleration Sensor problem triggering OBDII code C1251 in a Cadillac?

- The cost of repairing the Lateral Acceleration Sensor issue can vary depending on the exact cause of the problem. Costs may include sensor replacement, wiring repairs, and diagnostic labor, ranging from a few hundred to over a thousand dollars.

7. Are there any preventive maintenance tips to avoid OBDII code C1251 related to Lateral Acceleration Sensor Performance in a Cadillac?

- Regularly inspecting the sensor and its connections for damage or corrosion, following recommended maintenance schedules, and addressing any warning lights promptly can help prevent issues with the Lateral Acceleration Sensor.

8. Can a low battery voltage or electrical system issue trigger OBDII code C1251 in a Cadillac related to Lateral Acceleration Sensor Performance?

- Yes, a low battery voltage or electrical system problem can potentially impact the performance of the lateral acceleration sensor, leading to the triggering of code C1251. Ensuring a healthy electrical system is important for sensor operation.

9. Will resetting the OBDII code C1251 related to Lateral Acceleration Sensor Performance make the issue go away permanently?

- Resetting the code may temporarily turn off the warning light, but if the underlying issue with the Lateral Acceleration Sensor is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause.

10. How long does it take to repair the Lateral Acceleration Sensor problem causing OBDII code C1251 in a Cadillac?

- The repair time for the Lateral Acceleration Sensor issue can vary based on the exact problem and the availability of parts. It may take a few hours to a day for diagnosis, sensor replacement, and calibration.

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