What does code P1443 mean on Infiniti vehicles?
The ECU detects a malfunction in the canister control vacuum check switch.
OBD-II Code Infiniti
P1443 — Infiniti — Canister Control Vacuum Check Switch Malfunction
The ECU detects a malfunction in the canister control vacuum check switch.
Common symptoms
- Check engine light on
Possible causes
- Faulty vacuum switch
- wiring issues
Initial recommendation
Inspect canister vacuum check switch and related 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 Infiniti code P1443 with your vehicle's actual symptoms for more complete diagnostic guidance.
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