What does code P1473 mean?

Q: What does code P1473 mean?

EVAP Emission Control System LDP Open Circuit. P1473 on Volkswagen vehicles means the engine control module has detected an open circuit in the wiring for the Leak Detection Pump (LDP), which is part of the EVAP emission control system. The computer expects a certain current draw when it commands the pump to run during a self-test, but it sees no continuity, indicating a broken wire, unplugged connector, or failed pump motor winding.

DTC codes / Volkswagen codes / P1473

P1473 · VolkswagenEVAP Emission Control System LDP Open Circuit

P1473 on Volkswagen vehicles means the engine control module has detected an open circuit in the wiring for the Leak Detection Pump (LDP), which is part of the EVAP emission control system. The computer expects a certain current draw when it commands the pump to run during a self-test, but it sees no continuity, indicating a broken wire, unplugged connector, or failed pump motor winding.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.