What does code P1434 mean on Volkswagen vehicles?
The ECU detects a short to positive voltage in the secondary air injection pump relay circuit.
OBD-II Code Volkswagen
P1434 — Volkswagen — Secondary Air Injection Pump Relay Circuit Short to Positive
The ECU detects a short to positive voltage in the secondary air injection pump relay circuit.
Common symptoms
- Secondary air pump continuously running
Possible causes
- Faulty relay
- wiring short to positive
Initial recommendation
Replace the SAI pump relay and inspect 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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