P2405 Possible Causes
- Faulty leak detection pump
- Leak detection pump circuit open or shorted
- Poor electrical connection in leak detection pump circuit
- Faulty purge valve
- Clogged or damaged charcoal canister
How to Fix Code P2405
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P2405
Symptoms
Possible
Illuminated engine light (or service engine soon warning light)
P2405 Meaning
The Engine Control Module (ECM) monitors the power consumption of the leak detection pump. This diagnostic trouble code (DTC) can be diagnosed when the leak detection system is running. A diagnostic code is stored if the current consumption of the pump in the leak detection pump unit varies too much during the reference phase.