P1473 – Audi DTC

Audi DTC P1473 – EVAP Emission Control LDP Circ Open Circ

DTC P1473 meaning on Audi

The Diagnostic Trouble Code (DTC) P1473 for Audi refers to an issue with the EVAP (Evaporative Emission Control) Emission Control LDP (Leak Detection Pump) Circuit Open Circuit. This code indicates that there is an electrical circuit fault in the LDP system, which is responsible for detecting leaks in the vehicle’s evaporative emissions system.

Audi DTC P1473 symptoms

Symptoms of DTC P1473 on an Audi may include:

• Check Engine Light illuminated on the dashboard
• Decreased fuel efficiency
• Strong fuel odor near the vehicle
• Issues with passing emissions tests

Audi DTC P1473 causes

Common causes of DTC P1473 on an Audi include:

• Faulty Leak Detection Pump (LDP)
• Broken or damaged wiring in the LDP circuit
• Loose or corroded electrical connections
• EVAP system leaks

Audi DTC P1473 seriousness

While DTC P1473 may not cause immediate drivability issues, it is important to address this code promptly. Ignoring this fault can lead to increased emissions, reduced fuel efficiency, and potential environmental impact. Additionally, unresolved EVAP system problems may prevent the vehicle from passing emissions tests.

How to diagnose DTC P1473 on Audi

To diagnose DTC P1473 on an Audi, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the LDP system for physical damage or leaks
3. Check the wiring and electrical connections related to the LDP circuit
4. Perform a smoke test to identify any EVAP system leaks

How to fix DTC P1473 on Audi

To fix DTC P1473 on an Audi, the following steps may be taken:

1. Replace the faulty Leak Detection Pump (LDP)
2. Repair or replace any damaged wiring in the LDP circuit
3. Ensure all electrical connections are secure and free of corrosion
4. Address any identified EVAP system leaks

How to erase DTC P1473 on Audi

After addressing the underlying issue causing DTC P1473 on an Audi, the fault code can be erased using a diagnostic scanner. This will clear the code from the vehicle’s memory and turn off the Check Engine Light. It is important to verify that the issue has been resolved before clearing the code to prevent it from reoccurring.

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