AutoCodes – Scion – C1251 Scion

C1251 Scion 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 Scion 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.

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Code Popularity 2,283

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 30, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1251 Scion Description

The ABS Motor Relay (Skid Control ECU Interior Circuit) supplies the power to the ABS Pump Motor. While the ABS is activated, the ECU turns the motor relay ON and operates the ABS pump motor.

OBDII Code C1251 Scion - Open In Pump Motor Circuit - AutoCodes.com — C1251 Scion Code - Open In Pump Motor Circuit

What does this mean?

What are the Possible Causes of the DTC C1251 Scion?

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 Scion?

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 Scion 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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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 Scion Code

1. What does the OBDII code C1251 mean on a Scion?

C1251 indicates an "Open In Pump Motor Circuit," typically related to a problem in the ABS pump motor or its electrical circuit.

2. What are the common symptoms of code C1251 on a Scion?

Symptoms may include the ABS warning light illuminated, reduced braking performance, or the ABS system not functioning properly.

3. What causes the C1251 code to appear on a Scion?

Common causes include a faulty ABS pump motor, damaged wiring, corroded connectors, or a malfunctioning ABS control module.

4. Can driving with a C1251 code damage my Scion?

While the vehicle may still brake normally, the ABS system may not function, increasing the risk of skidding during hard braking or on slippery roads.

5. How can I diagnose the C1251 code on my Scion?

Check the ABS pump motor for proper operation, inspect wiring and connectors for damage or corrosion, and test the ABS control module for faults.

6. How do I fix the C1251 code on a Scion?

Repairs may involve replacing the ABS pump motor, repairing damaged wiring or connectors, or replacing the ABS control module if necessary.

7. Is the C1251 code specific to Scion vehicles?

No, the C1251 code can appear on other vehicles with similar ABS systems, but troubleshooting steps may vary by make and model.

8. Can a low battery cause the C1251 code on a Scion?

A weak or failing battery can sometimes affect ABS functionality, but the code usually points to a direct issue with the pump motor circuit.

9. How much does it cost to repair a C1251 code on a Scion?

Repair costs can range from $100 to $1,000, depending on whether the issue is with wiring, connectors, or the ABS pump motor itself.

10. Do I need a professional mechanic to fix the C1251 code on my Scion?

While some issues like checking wiring can be done by DIYers, diagnosing and repairing the ABS pump motor or control module may require professional tools and expertise.