What does code P0419 mean?
A malfunction is detected in relay B of the secondary air injection system, limiting proper air injection.
OBD-II Code
P0419 — Secondary Air Injection System Relay B Circuit Malfunction
A malfunction is detected in relay B of the secondary air injection system, limiting proper air injection.
Common symptoms
- Secondary air pump not operating
- insufficient airflow
- increased emissions
Possible causes
- Damaged relay
- blown fuse
- poor electrical connections
Initial recommendation
Replace relay B and inspect associated fuses and wiring.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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