What does code P1128 mean on Lexus vehicles?
The electronic throttle motor is detected as mechanically locked or unable to move.
OBD-II Code Lexus
P1128 — Lexus — Throttle Control Motor Lock Malfunction
The electronic throttle motor is detected as mechanically locked or unable to move.
Common symptoms
- Limp mode
- no throttle response
Possible causes
- Carbon buildup
- seized throttle motor
- internal failure
Initial recommendation
Clean throttle body or replace throttle assembly if necessary.
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 P1128 with your vehicle's actual symptoms for more complete diagnostic guidance.
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