What does code P0156 mean on Land Rover vehicles?
The ECU detects an abnormal signal cycle from the downstream oxygen sensor on bank B.
OBD-II Code Land Rover
P0156 — Land Rover — Oxygen Sensor Downstream Bank B Cycle Fault
The ECU detects an abnormal signal cycle from the downstream oxygen sensor on bank B.
Common symptoms
- Check engine light on
Possible causes
- Faulty downstream oxygen sensor
Initial recommendation
Inspect downstream oxygen sensor on bank B and 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.
Analyze this code with MecaOBD
Use the app to combine Land Rover code P0156 with your vehicle's actual symptoms for more complete diagnostic guidance.
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