What does code P1459 mean on BMW vehicles?
The ECU detects an open circuit in the power supply of the heated catalytic converter heater on Bank 2.
OBD-II Code BMW
P1459 — BMW — Heated Catalyst Heater Power Supply Open Circuit (Bank 2)
The ECU detects an open circuit in the power supply of the heated catalytic converter heater on Bank 2.
Common symptoms
- Reduced catalytic efficiency
- increased emissions
Possible causes
- Faulty wiring
- open circuit in heater power supply
Initial recommendation
Inspect power supply wiring and restore proper electrical connection.
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
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