C1252 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 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 Description
What are the Possible Causes of the DTC C1252?
- 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?
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 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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Information for Specific Makes
- C1252 Buick — Longitudinal Acceleration Sensor Circuit Low Voltage
- C1252 Cadillac — Longitudinal Acceleration Sensor Circuit Low Voltage
- C1252 Chevrolet — Longitudinal Acceleration Sensor Circuit Low Voltage
- C1252 GMC — Longitudinal Acceleration Sensor Circuit Low Voltage
- C1252 Lexus — Brake Booster Pump Motor ON Time Abnormally Long
- C1252 Pontiac — Left Front Normal Force Malfunction
- C1252 Saturn — Left Front Normal Force Malfunction
- C1252 Scion — Brake Booster Pump Motor ON Time Abnormally Long
- C1252 Toyota — Brake Booster Pump Motor ON Time Abnormally Long
Frequently Asked Questions about C1252 Code
1. What are the common symptoms of OBDII code C1252 (Longitudinal Acceleration Sensor Circuit Low Voltage)?
The common symptoms include the ABS warning light being illuminated on the dashboard, loss of traction control functionality, and potential issues with the vehicle stability control system.
2. What can cause the OBDII code C1252 to trigger?
The code C1252 is typically triggered by a malfunction in the longitudinal acceleration sensor circuit, resulting in low voltage being detected by the vehicle's onboard diagnostic system.
3. How serious is the OBDII code C1252 (Longitudinal Acceleration Sensor Circuit Low Voltage)?
While the vehicle may still be operable with this code present, it is important to address the underlying issue promptly to ensure proper functioning of the ABS and stability control systems.
4. How can I diagnose the cause of OBDII code C1252?
Diagnosing the cause of C1252 usually involves conducting a thorough inspection of the longitudinal acceleration sensor circuit, checking for loose connections, damaged wiring, or a faulty sensor.
5. Is it safe to continue driving with OBDII code C1252?
It is recommended to avoid driving the vehicle excessively with this code present, as it may affect the proper operation of the ABS and stability control systems, compromising safety.
6. Can I repair OBDII code C1252 on my own?
Depending on your automotive repair skills and access to tools, you may be able to address the issue causing C1252 on your own by inspecting and potentially repairing the longitudinal acceleration sensor circuit.
7. What are some common repair tips for fixing OBDII code C1252?
Common repair tips include checking and cleaning sensor connectors, repairing damaged wiring, replacing the longitudinal acceleration sensor if necessary, and clearing the code with an OBDII scanner.
8. How much does it typically cost to repair OBDII code C1252?
The cost of repairing C1252 can vary depending on the root cause of the issue, the need for replacement parts, and whether the repair is done professionally or DIY. Costs may range from a few dollars for simple fixes to a few hundred dollars for more complex repairs.
9. Can OBDII code C1252 be intermittent?
Yes, the code C1252 can sometimes be triggered intermittently, especially if the issue is related to a loose connection or a sensor that is failing intermittently. It is still important to address the underlying problem to avoid potential safety issues.
10. How long does it typically take to repair OBDII code C1252?
The repair time for C1252 can vary depending on the complexity of the issue and the extent of the repair needed. Simple fixes like tightening a loose connector may take a few minutes, while more involved repairs could take several hours or longer.
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