What does code P0121 mean on Land Rover vehicles?
The ECU detects an invalid output signal from the throttle position sensor.
OBD-II Code Land Rover
P0121 — Land Rover — Throttle Position Sensor Output Signal Error
The ECU detects an invalid output signal from the throttle position sensor.
Common symptoms
- Poor throttle response
Possible causes
- Faulty throttle position sensor
Initial recommendation
Perform throttle position sensor diagnostics and verify signal output.
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 P0121 with your vehicle's actual symptoms for more complete diagnostic guidance.
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