What does code P1490 mean on Nissan vehicles?
A malfunction has been detected in the vacuum cut bypass valve circuit within the EVAP system.
OBD-II Code Nissan
P1490 — Nissan — Vacuum Cut Valve Bypass Valve Circuit
A malfunction has been detected in the vacuum cut bypass valve circuit within the EVAP system.
Common symptoms
- EVAP system malfunction
Possible causes
- Wiring fault
- failed bypass valve
Initial recommendation
Check vacuum cut bypass valve circuit and wiring.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Nissan code P1490 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands