Engine-CodesVolkswagen – P1473 Volkswagen

P1473 Volkswagen Code - EVAP Control System LDP Open Circuit

Quick Answer

The P1473 code for Volkswagen vehicles indicates a problem with the EVAP (Evaporative Emission Control System) Control System, specifically a LDP (Leak Detection Pump) Open Circuit. Common causes include Damaged Wiring: Corrosion, fraying, or damage to the wiring connected to the LDP can lead to an open circuit, Faulty LDP: The LDP itself may be malfunctioning, causing the open circuit code to trigger, Blown Fuse: A blown fuse in the EVAP system circuit can prevent the LDP from functioning correctly. 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
P1473 Volkswagen indicates EVAP Control System LDP Open Circuit.
Common causes
Common causes include Damaged Wiring: Corrosion, fraying, or damage to the wiring connected to the LDP can lead to an open circuit, Faulty LDP: The LDP itself may be malfunctioning, causing the open circuit code to trigger, Blown Fuse: A blown fuse in the EVAP system circuit can prevent the LDP from functioning correctly.
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.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P1473 Volkswagen Description

The P1473 code for Volkswagen vehicles indicates a problem with the EVAP (Evaporative Emission Control System) Control System, specifically a LDP (Leak Detection Pump) Open Circuit. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. The LDP is a crucial component of this system as it monitors for leaks in the fuel tank and fuel delivery system.

OBDII Code P1473 Volkswagen - EVAP Control System LDP Open Circuit
P1473 Volkswagen Code - EVAP Control System LDP Open Circuit

Common Causes of P1473 Volkswagen

  1. Damaged Wiring: Corrosion, fraying, or damage to the wiring connected to the LDP can lead to an open circuit.
  2. Faulty LDP: The LDP itself may be malfunctioning, causing the open circuit code to trigger.
  3. Blown Fuse: A blown fuse in the EVAP system circuit can prevent the LDP from functioning correctly.
  4. EVAP System Control Module Issue: A problem with the control module that oversees the EVAP system could also be a potential cause.

Symptoms of P1473 Volkswagen

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Fuel Smell: A noticeable fuel smell inside or outside the vehicle could indicate a problem with the EVAP system.
  3. Decreased Fuel Efficiency: A decrease in fuel efficiency could be a result of the EVAP system not functioning properly.
  4. Failed Emissions Test: If the vehicle is due for an emissions test, it may fail due to increased emissions caused by the EVAP system issue.

How to Fix P1473 Volkswagen

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble codes and pinpoint the specific problem with the EVAP system.
  2. Inspect Wiring: Check the wiring connected to the LDP for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the LDP: Test the functionality of the LDP to determine if it is working correctly. Replace if found to be faulty.
  4. Check Fuses: Inspect and replace any blown fuses in the EVAP system circuit that may be causing the open circuit.
  5. Clear Codes and Test Drive: Clear the trouble codes with the diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1473 Volkswagen

The cost of repairing a P1473 code for Volkswagen vehicles can vary depending on the specific cause of the issue and the labor rates in your area. On average, the parts required for this repair, such as a new LDP or wiring components, can range from $100 to $300. Labor costs can add an additional $100 to $300, bringing the total estimated cost to $200 to $600.

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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.

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