C1252 Buick Code - Longitudinal Acceleration Sensor Circuit Low Voltage
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
- C1252 Buick indicates Longitudinal Acceleration Sensor Circuit Low Voltage.
- 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 C1252 Buick Description
What are the Possible Causes of the DTC C1252 Buick?
- 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 C1252 Buick?
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 C1252 Buick 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 C1252 Buick Code
1. What does the OBDII code C1252 mean on a Buick?
C1252 indicates a "Longitudinal Acceleration Sensor Circuit Low Voltage," meaning there’s an issue with the circuit connected to the sensor that measures forward or backward acceleration.
2. What are the common symptoms of a C1252 code in a Buick?
Symptoms may include ABS or traction control warning lights, reduced braking performance, or erratic traction control behavior.
3. What causes the C1252 code to appear?
Common causes include a faulty longitudinal acceleration sensor, damaged wiring, loose electrical connections, or a malfunctioning ABS module.
4. Can I drive my Buick with a C1252 code?
While the vehicle may still be drivable, it might have compromised ABS and traction control systems, which could affect safety in slippery or emergency situations.
5. How do I diagnose the C1252 code?
Start by scanning for additional codes, inspecting the longitudinal acceleration sensor and its wiring, and checking for low voltage or poor connections in the circuit.
6. Where is the longitudinal acceleration sensor located in a Buick?
The longitudinal acceleration sensor is typically located near the center of the vehicle, often under the floorboard or near the ABS module.
7. How do I fix a C1252 code on my Buick?
Repairs may include replacing the longitudinal acceleration sensor, repairing or replacing damaged wiring, or addressing any issues in the ABS module.
8. How much does it cost to fix the C1252 code on a Buick?
Repair costs can range from $150 to $500 or more, depending on whether the sensor, wiring, or ABS module needs replacement.
9. Can a weak battery cause the C1252 code?
Yes, a weak or failing battery can lead to low voltage in the circuit, potentially triggering the C1252 code.
10. Do I need to recalibrate the system after fixing the C1252 code?
Yes, after replacing the sensor or repairing the circuit, the ABS or traction control system may require recalibration using a diagnostic tool.
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