C1254 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 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 Description
What are the Possible Causes of the DTC C1254?
- 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?
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 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 code?
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Need Help with the Code?
Get the C1254 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C1254 Buick — Longitudinal Acceleration Sensor Performance
- C1254 Cadillac — Longitudinal Acceleration Sensor Performance
- C1254 Chevrolet — Longitudinal Acceleration Sensor Performance
- C1254 Ford — Right Rear ISO Valve Circuit Failure
- C1254 GMC — Longitudinal Acceleration Sensor Performance
- C1254 Lexus — Pressure Switch Circuit
- C1254 Lincoln — Right Rear ISO Valve Circuit Failure
- C1254 Mercury — Right Rear ISO Valve Circuit Failure
- C1254 Pontiac — Abnormal Shutdown Detected
- C1254 Saturn — Abnormal Shutdown Detected
- C1254 Toyota — Pressure Switch Circuit
Frequently Asked Questions about C1254 Code
1. What are common symptoms of OBDII code C1254 (Longitudinal Acceleration Sensor Performance)?
- Common symptoms include the ABS warning light being illuminated on the dashboard, unstable vehicle handling, and potential traction control issues.
2. What are the possible causes of OBDII code C1254?
- The code C1254 can be triggered by a faulty longitudinal acceleration sensor, damaged wiring or connectors, or issues with the sensor calibration.
3. How can I diagnose the cause of OBDII code C1254?
- Diagnosing the code typically involves using a professional OBDII scanner to read and interpret the specific error codes, as well as conducting visual inspections of the sensor and its connections.
4. Can I continue driving my vehicle with OBDII code C1254?
- It is not recommended to drive the vehicle with the code C1254 present, as it can affect the proper functioning of the ABS system and compromise vehicle safety.
5. How can I repair OBDII code C1254?
- Repairing the code C1254 often involves replacing the faulty longitudinal acceleration sensor, repairing damaged wiring or connectors, and recalibrating the sensor as necessary.
6. Is it possible to clear OBDII code C1254 without fixing the underlying issue?
- While you can clear the code temporarily, it is essential to address the root cause to prevent the code from reoccurring and ensure the proper functioning of the ABS system.
7. Can a DIY enthusiast fix OBDII code C1254 at home?
- Depending on your skill level and access to tools, some DIY enthusiasts may be able to replace the longitudinal acceleration sensor and address wiring issues, but professional diagnosis is recommended.
8. How much does it cost to repair OBDII code C1254 at a mechanic or dealership?
- The cost of repairing OBDII code C1254 can vary depending on the extent of the issue, but it typically involves parts and labor costs ranging from $200 to $500.
9. Are there any preventive measures to avoid OBDII code C1254 in the future?
- Regular vehicle maintenance, including checking the ABS system components during routine inspections, can help prevent issues that may trigger OBDII code C1254.
10. Can OBDII code C1254 affect the overall performance of my vehicle?
- Yes, OBDII code C1254 can impact the stability and safety of the vehicle, especially during braking and acceleration, so it is essential to address the issue promptly.
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