P1473 Code - EVAP Control System LDP Open Circuit
Quick Answer
The P1473 code indicates a problem with the Evaporative Emission Control System LDP (Leak Detection Pump) Open Circuit. Common causes include Broken or damaged wiring in the LDP circuit, Loose or corroded electrical connections, Faulty LDP pump. 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 Broken or damaged wiring in the LDP circuit, Loose or corroded electrical connections, Faulty LDP pump.
- 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 P1473 Description
The P1473 code indicates a problem with the Evaporative Emission Control System LDP (Leak Detection Pump) Open Circuit. The Evaporative Emission Control System is responsible for capturing and storing fuel vapors that would otherwise be released into the atmosphere. The LDP is a crucial component of this system as it helps detect leaks in the system by pressurizing it and monitoring for any drop in pressure.
Common Causes of P1473
- Broken or damaged wiring in the LDP circuit
- Loose or corroded electrical connections
- Faulty LDP pump
- Malfunctioning LDP sensor
- Evaporative Emission Control System leak
Symptoms of P1473
- Check Engine Light illuminated
- Reduced fuel efficiency
- Strong fuel odor
- Failed emissions test
- Rough idle or stalling
How to Fix P1473
- Use an OBD-II scanner to confirm the P1473 code and diagnose the specific issue with the LDP system.
- Inspect the wiring and electrical connections in the LDP circuit for any damage or corrosion. Repair or replace any faulty components.
- Test the LDP pump and sensor for proper operation. Replace any components that are not functioning correctly.
- Clear the trouble codes with the OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.
- Perform an emissions test to verify that the Evaporative Emission Control System is functioning properly.
Cost to Fix P1473
The cost of repairing a P1473 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the parts for this repair, such as a new LDP pump or sensor, can range from $100 to $300. The labor costs for diagnosing and repairing the issue can add an additional $100 to $300 to the total bill.
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Code P1473 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
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.
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