What does code P1120 mean on Lexus vehicles?
An electrical fault has been detected in the accelerator pedal position (APP) sensor circuit.
OBD-II Code Lexus
P1120 — Lexus — Accelerator Pedal Position Sensor Circuit Malfunction
An electrical fault has been detected in the accelerator pedal position (APP) sensor circuit.
Common symptoms
- Erratic acceleration
- limp mode activation
- check engine light
Possible causes
- Defective APP sensor
- wiring harness damage
- ECM fault
Initial recommendation
Perform diagnostic testing of the accelerator pedal position sensor 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
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