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Engine-Codes – Generic – C1428

C1428 Code - Actuator Pump Motor Circuit Malfunction

Quick Answer

The diagnostic trouble code C1428 indicates a malfunction in the actuator pump motor circuit. Common causes include Faulty actuator pump motor, Damaged wiring or connectors in the actuator pump motor circuit, Corrosion or moisture in the ABS system components. 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
C1428 indicates Actuator Pump Motor Circuit Malfunction.
Common causes
Common causes include Faulty actuator pump motor, Damaged wiring or connectors in the actuator pump motor circuit, Corrosion or moisture in the ABS system components.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code C1428 Description

The diagnostic trouble code C1428 indicates a malfunction in the actuator pump motor circuit. This code specifically relates to the anti-lock braking system (ABS) in the vehicle. The actuator pump motor is a crucial component of the ABS system, responsible for building up hydraulic pressure and controlling the braking force applied to each wheel during sudden stops or slippery road conditions.

OBDII Code C1428 - Actuator Pump Motor Circuit Malfunction
C1428 Code - Actuator Pump Motor Circuit Malfunction

Common Causes of C1428

  1. Faulty actuator pump motor
  2. Damaged wiring or connectors in the actuator pump motor circuit
  3. Corrosion or moisture in the ABS system components
  4. Electrical issues such as a blown fuse or relay related to the actuator pump motor
  5. Issues with the ABS control module

Symptoms of C1428

  1. Illuminated ABS warning light on the dashboard
  2. Decreased braking efficiency, especially during sudden stops or on slippery roads
  3. Unusual noises coming from the ABS system during braking
  4. ABS system may engage unexpectedly or behave erratically
  5. Increased stopping distances

How to Fix C1428

  1. Begin by conducting a thorough inspection of the actuator pump motor circuit, looking for any visible damage or corrosion.
  2. Test the actuator pump motor and related components using a multimeter to check for proper voltage and continuity.
  3. Inspect the wiring and connectors for any signs of wear, damage, or loose connections. Repair or replace as needed.
  4. Check the ABS control module for any fault codes or issues that may be contributing to the problem.
  5. Clear the diagnostic trouble codes from the vehicle's computer and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C1428

The repair costs for addressing a C1428 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a faulty actuator pump motor or repairing wiring and connectors can range from $200 to $600. Additional costs may include diagnostic fees, labor costs, and any other necessary parts. It's recommended to consult with a qualified mechanic or repair shop to get an accurate estimate based on your vehicle's make and model.

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Code C1428 Information for Specific Makes

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 C1428 Code

1. What are the common symptoms of OBDII code C1428 (Actuator Pump Motor Circuit Malfunction)?

- Common symptoms include the ABS warning light coming on, loss of ABS functionality, and unusual noises coming from the ABS pump motor.

2. What are the possible causes of OBDII code C1428?

- The code C1428 can be caused by issues such as a faulty ABS pump motor, damaged wiring or connectors, low brake fluid level, or a malfunctioning ABS control module.

3. How can I diagnose the cause of OBDII code C1428?

- Diagnosing the code typically involves checking the ABS system components, inspecting the wiring and connectors for damage, testing the ABS pump motor, and using a diagnostic scanner to read ABS fault codes.

4. Can I still drive my vehicle with OBDII code C1428 present?

- While it is possible to drive the vehicle with the code present, it is not recommended as the ABS system may not function properly, potentially compromising safety. It is advised to address the issue promptly.

5. How can I repair OBDII code C1428?

- Repairing the code C1428 involves addressing the specific cause identified during diagnosis. This may include replacing the ABS pump motor, repairing damaged wiring, replenishing brake fluid, or reprogramming the ABS control module.

6. Are there any DIY tips for fixing OBDII code C1428?

- DIY tips for fixing the code C1428 include checking fuses related to the ABS system, inspecting the ABS pump motor for any visible damage, and ensuring proper brake fluid level before seeking professional help if needed.

7. Is it safe to reset the OBDII code C1428 without fixing the underlying issue?

- It is not recommended to simply reset the code without addressing the underlying problem, as it may result in recurring issues with the ABS system and compromise the safety of the vehicle.

8. Can extreme weather conditions cause OBDII code C1428 to trigger?

- Extreme weather conditions, such as extreme cold or heat, can potentially affect the operation of ABS components and trigger the code C1428. Proper maintenance and inspection can help mitigate these issues.

9. How much does it typically cost to repair OBDII code C1428?

- The cost of repairing OBDII code C1428 can vary depending on the specific cause of the issue, the extent of the repairs needed, and labor costs. It is advisable to consult a mechanic for an accurate cost estimate.

10. Is it necessary to have the ABS system inspected regularly to prevent OBDII code C1428?

- Regular inspection and maintenance of the ABS system, including checking brake fluid levels, ensuring proper functioning of ABS components, and addressing any warning lights promptly, can help prevent issues like code C1428 from occurring.

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