AutoCodes – Audi – P1428 Audi

P1428 Audi Code - Brake System Vacuum Pump Activation Short To Ground

Quick Answer

P1428 Audi indicates Brake System Vacuum Pump Activation Short To Ground. Common causes include Faulty Brake System Vacuum Pump, Brake System Vacuum Pump harness is open or shorted, Brake System Vacuum Pump 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: P1428 Audi indicates Brake System Vacuum Pump Activation Short To Ground.
Common causes: Common causes include Faulty Brake System Vacuum Pump, Brake System Vacuum Pump harness is open or shorted, Brake System Vacuum Pump 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 4,228

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 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1428 Audi Description

OBDII Code P1428 Audi - Brake System Vacuum Pump Activation Short To Ground - AutoCodes.com — P1428 Audi Code - Brake System Vacuum Pump Activation Short To Ground

What does this mean?

What are the Possible Causes of the DTC P1428 Audi?

Faulty Brake System Vacuum Pump
Brake System Vacuum Pump harness is open or shorted
Brake System Vacuum Pump circuit poor electrical connection

How to Fix the DTC P1428 Audi?

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 P1428 Audi 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.

Need more information about the P1428 Audi code?

Need more information on how to fix the P1428 Audi code? Get Access to Factory Service Manuals

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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 P1428 Audi Code

1. What are the common symptoms of OBDII code P1428 in an Audi related to the brake system vacuum pump activation short to ground?

The common symptoms include hard brake pedal feel, reduced brake assist, and the brake system warning light illuminating on the dashboard.

2. What are the possible causes of OBDII code P1428 in an Audi indicating a brake system vacuum pump activation short to ground?

Potential causes include a damaged wiring harness, a faulty vacuum pump, a short circuit in the electrical system, or a malfunctioning brake vacuum sensor.

3. How can I diagnose the OBDII code P1428 in an Audi related to the brake system vacuum pump activation short to ground?

Diagnosis typically involves using a scan tool to read the fault codes, inspecting the wiring for any visible damage, testing the vacuum pump and sensor components, and checking for any short circuits in the system.

4. What are some repair tips for addressing OBDII code P1428 in an Audi with a brake system vacuum pump activation short to ground?

Repair tips may include repairing or replacing any damaged wiring, replacing the faulty vacuum pump or sensor, clearing the fault codes, and performing a system reset to see if the issue is resolved.

5. Can OBDII code P1428 in an Audi indicating a brake system vacuum pump activation short to ground be dangerous to drive with?

Driving with this issue may result in compromised brake performance and safety, so it is recommended to address the problem promptly to ensure the proper functioning of the brake system.

6. How much does it typically cost to repair OBDII code P1428 in an Audi related to the brake system vacuum pump activation short to ground?

The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor costs, and diagnostic fees.

7. Are there any preventive measures to avoid encountering OBDII code P1428 in an Audi due to the brake system vacuum pump activation short to ground?

Regular maintenance and inspections of the brake system components, including the vacuum pump and wiring, can help prevent issues like a short to ground from occurring.

8. Can I reset the OBDII code P1428 in an Audi myself after fixing the brake system vacuum pump activation short to ground issue?

After addressing the root cause of the problem, you can clear the fault codes with a scan tool or by disconnecting the car's battery for a few minutes to reset the system.

9. Is it advisable to continue driving an Audi with OBDII code P1428 indicating a brake system vacuum pump activation short to ground if the symptoms are intermittent?

Even if the symptoms are intermittent, it is still recommended to address the underlying issue promptly to ensure the proper functioning of the brake system and overall vehicle safety.

10. How long does it typically take to repair OBDII code P1428 in an Audi related to the brake system vacuum pump activation short to ground?

The repair time can vary based on the specific cause of the problem, the availability of parts, and the expertise of the technician, but it may take a few hours to a day to complete the repair process.