AutoCodes – Generic – P1473

P1473 Code - EVAP Control System LDP Open Circuit

Quick Answer

P1473 indicates EVAP Control System LDP Open Circuit. Common causes include Faulty Leak Detection Pump (LDP), Leak Detection Pump harness is open or shorted, Leak Detection 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: P1473 indicates EVAP Control System LDP Open Circuit.
Common causes: Common causes include Faulty Leak Detection Pump (LDP), Leak Detection Pump harness is open or shorted, Leak Detection 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 23,014

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 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1473 Description

OBDII Code P1473 - EVAP Control System LDP Open Circuit - AutoCodes.com — P1473 Code - EVAP Control System LDP Open Circuit

What does this mean?

What are the Possible Causes of the DTC P1473?

Faulty Leak Detection Pump (LDP)
Leak Detection Pump harness is open or shorted
Leak Detection Pump circuit poor electrical connection

How to Fix the DTC P1473?

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 P1473 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 P1473 code?

Need more information on how to fix the P1473 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1473 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1473 Audi — EVAP Control System LDP Open Circuit
P1473 BMW — Diagnostic Module Tank Leakage Pump Current Plausibility
P1473 Ford — Fan Secondary High With Fans Off
P1473 Lincoln — Fan Secondary High With Fans Off
P1473 Mercury — Fan Secondary High With Fans Off
P1473 MINI — Diagnostic Module Tank Leakage Pump Current Plausibility
P1473 Volkswagen — EVAP Control System LDP Open Circuit

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 P1473 Code

1. What are common symptoms of OBDII code P1473 (EVAP Control System LDP Open Circuit)?

- Common symptoms include the check engine light being illuminated, decreased fuel efficiency, and potential gasoline odors near the vehicle.

2. What are the possible causes of OBDII code P1473?

- The code P1473 can be caused by a faulty Leak Detection Pump (LDP), damaged wiring or connectors in the EVAP system, or a malfunctioning purge solenoid.

3. How can I diagnose the OBDII code P1473?

- Diagnosis involves conducting a thorough inspection of the EVAP system components, checking the LDP and purge solenoid functionality, and testing the wiring for continuity and shorts.

4. Can a loose gas cap trigger the OBDII code P1473?

- While a loose gas cap can cause an EVAP leak and trigger a related code, code P1473 specifically indicates an open circuit in the LDP system rather than a simple gas cap issue.

5. Is it safe to continue driving with OBDII code P1473 present?

- It is generally safe to drive with code P1473, but it is recommended to have the issue addressed promptly to prevent potential problems with the EVAP system and emissions control.

6. How can I repair OBDII code P1473?

- Repairing code P1473 often involves replacing the faulty Leak Detection Pump (LDP), repairing damaged wiring or connectors, or replacing the malfunctioning purge solenoid.

7. Can I reset the check engine light after repairing OBDII code P1473?

- Yes, after addressing the underlying issue causing code P1473, you can reset the check engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

8. Are there any DIY tips for fixing OBDII code P1473?

- DIY tips for addressing code P1473 include checking the EVAP system components for visible damage, ensuring proper connections, and consulting the vehicle's service manual for specific repair procedures.

9. How much does it cost to repair OBDII code P1473 at a mechanic?

- The cost of repairing code P1473 at a mechanic can vary depending on the specific cause of the issue, but it may range from $150 to $500, including parts and labor.

10. Will OBDII code P1473 cause my vehicle to fail an emissions test?

- Yes, code P1473 typically indicates a problem with the EVAP system, which is crucial for emissions control. It is recommended to address the issue before undergoing an emissions test to avoid failing.