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OBD-II Code Lexus

P1127 — Lexus — ECTS Actuator Power Source Circuit Malfunction

The ECU detects a power supply fault to the Electronic Throttle Control System (ETCS) actuator.

Brand Lexus
System Engine
Severity Medium
Safe to drive? Yes, with caution
Advanced scanner Not necessarily

What does code P1127 mean on Lexus vehicles?

The ECU detects a power supply fault to the Electronic Throttle Control System (ETCS) actuator.

Common symptoms

  • Check engine light
  • limited acceleration

Possible causes

  • Faulty power supply
  • blown fuse
  • wiring fault
  • ECM

Initial recommendation

Verify power supply, fuses and wiring to ETCS actuator.

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 P1127 with your vehicle's actual symptoms for more complete diagnostic guidance.

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