C1251 Code - Open In Pump Motor Circuit
Quick Answer
The ABS Motor Relay (Skid Control ECU Interior Circuit) supplies the power to the ABS Pump Motor. Common causes include Faulty ABS Motor Relay, ABS Motor Relay harness is open or shorted, ABS Motor Relay 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 indicates Open In Pump Motor Circuit.
- Common causes
- Common causes include Faulty ABS Motor Relay, ABS Motor Relay harness is open or shorted, ABS Motor Relay 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 C1251 Description
What are the Possible Causes of the DTC C1251?
- Faulty ABS Motor Relay
- ABS Motor Relay harness is open or shorted
- ABS Motor Relay circuit poor electrical connection
- Faulty Skid Control ECU
How to Fix the DTC C1251?
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 C1251 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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Need Help with the Code?
Get the C1251 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C1251 Buick — Lateral Acceleration Sensor Performance
- C1251 Cadillac — Lateral Acceleration Sensor Performance
- C1251 Chevrolet — Lateral Acceleration Sensor Performance
- C1251 GMC — Lateral Acceleration Sensor Performance
- C1251 Lexus — Open in Pump Motor Circuit
- C1251 Scion — Open In Pump Motor Circuit
- C1251 Toyota — Open in Pump Motor Circuit
Frequently Asked Questions about C1251 Code
1. What are the common symptoms of OBDII code C1251 (Open In Pump Motor Circuit)?
Common symptoms include the ABS warning light illuminating on the dashboard, decreased braking performance, and potential activation of the vehicle's limp mode.
2. What could cause the OBDII code C1251 to trigger?
The code C1251 typically triggers due to an open circuit in the pump motor circuit of the anti-lock braking system (ABS). This can be caused by damaged wiring, a faulty ABS pump motor, or a corroded connector.
3. How can I diagnose the cause of the open circuit in the pump motor circuit?
To diagnose the issue, you can start by visually inspecting the wiring harness for any signs of damage or corrosion. Using a multimeter, you can also test the continuity along the circuit to identify the specific location of the open circuit.
4. Is it safe to drive with OBDII code C1251 present?
It is not recommended to drive with the C1251 code active, as it indicates a potential issue with the ABS system that may compromise braking performance and overall safety. It is advised to address the problem promptly.
5. Can I reset the OBDII code C1251 without fixing the underlying issue?
While you can clear the code using an OBDII scanner, the issue causing the code to trigger will persist until properly repaired. Clearing the code without fixing the problem will likely result in the code reappearing.
6. How can I repair the open circuit in the pump motor circuit associated with code C1251?
Repairing the open circuit involves locating the damaged section of the wiring harness, repairing or replacing the wiring, and ensuring proper connection to the ABS pump motor. In some cases, replacing the ABS pump motor may be necessary.
7. Will fixing the open circuit in the pump motor circuit reset the OBDII code C1251?
Once you have repaired the open circuit and resolved the issue in the pump motor circuit, you can use an OBDII scanner to clear the code. After clearing the code, monitor the system to ensure the code does not reappear.
8. Are there any preventive measures to avoid OBDII code C1251 in the future?
To prevent OBDII code C1251 from occurring, regularly inspect the wiring harness for signs of wear or damage, ensure proper maintenance of the ABS system, and address any issues promptly to avoid further damage.
9. Can a DIY enthusiast repair the open circuit causing OBDII code C1251?
If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair the open circuit yourself. However, if you are unsure or uncomfortable with electrical repairs, it is recommended to seek professional assistance.
10. Is it necessary to visit a dealership for OBDII code C1251 repair?
While a dealership can certainly assist with diagnosing and repairing OBDII code C1251, independent auto repair shops and knowledgeable DIY enthusiasts can also effectively address the issue. The key is ensuring the proper diagnosis and repair procedures are followed to resolve the problem.
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