What does code P1420 mean on Volkswagen vehicles?
The ECU detects an electrical malfunction in the secondary air injection (SAI) control module.
OBD-II Code Volkswagen
P1420 — Volkswagen — Secondary Air Injection Control Module Electrical Malfunction
The ECU detects an electrical malfunction in the secondary air injection (SAI) control module.
Common symptoms
- Check engine light
Possible causes
- Faulty SAI control module
- electrical issues
Initial recommendation
Perform diagnostics on the SAI control module and related circuits.
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 Volkswagen code P1420 with your vehicle's actual symptoms for more complete diagnostic guidance.
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