What does code P1433 mean on Volkswagen vehicles?
The ECU detects an open circuit in the secondary air injection pump relay.
OBD-II Code Volkswagen
P1433 — Volkswagen — Secondary Air Injection Pump Relay Circuit Open
The ECU detects an open circuit in the secondary air injection pump relay.
Common symptoms
- SAI system inoperative
Possible causes
- Faulty relay
- open wiring circuit
Initial recommendation
Check SAI pump relay and repair open circuit 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.
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