What does code P1141 mean on Mazda vehicles?
The oxygen sensor heater circuit voltage is lower than expected.
OBD-II Code Mazda
P1141 — Mazda — HO2S Bank 1 Sensor 2 Heater Circuit Low Input
The oxygen sensor heater circuit voltage is lower than expected.
Common symptoms
- Check engine light
Possible causes
- Wiring fault
- short to ground
Initial recommendation
Inspect heater circuit wiring and repair electrical faults.
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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