What does code P1129 mean on Jaguar vehicles?
The ECU detects malfunctions in the downstream heated oxygen sensors on both banks.
OBD-II Code Jaguar
P1129 — Jaguar — Heated Oxygen Sensors Downstream Bank 1 and Bank 2 Malfunction
The ECU detects malfunctions in the downstream heated oxygen sensors on both banks.
Common symptoms
- Check engine light on
Possible causes
- Faulty downstream oxygen sensors
Initial recommendation
Inspect and replace downstream oxygen sensors as required.
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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