What does code P1401 mean on Lexus vehicles?
The secondary throttle position sensor signal is outside the expected operating range.
OBD-II Code Lexus
P1401 — Lexus — Sub-Throttle Position Sensor Range/Performance Problem
The secondary throttle position sensor signal is outside the expected operating range.
Common symptoms
- Erratic acceleration
- unstable throttle response
Possible causes
- Miscalibrated or faulty TP sensor
Initial recommendation
Perform electronic throttle system inspection and sensor calibration.
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 Lexus code P1401 with your vehicle's actual symptoms for more complete diagnostic guidance.
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