AutoCodes - OBDII Code List - P1127 LEXUS

P1127 LEXUS - ECTS Actuator Power Source Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3
Table of contents

P1127 LEXUS Possible Causes

  • Faulty Electronic Throttle Control System (ETCS) Actuator
  • Electronic Throttle Control System (ETCS) Actuator harness is open or shorted
  • Electronic Throttle Control System (ETCS) Actuator circuit poor electrical connection

How do I fix code P1127 LEXUS?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P1127 LEXUS code

Labor: 1.0

The cost of diagnosing the P1127 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1127 LEXUS Description

Battery positive voltage is supplied to terminal +BM of the Engine Control Module (ECM) even once when the ignition switch is OFF for the electric Electronic Throttle Control System (ETCS) control system.
If the P1127 code is stored, the ECM shuts down the power for the ETCS motor and the magnetic clutch, and the ETCS valve is fully closed by the return spring.
However, the opening angle of the ETCS valve can be controlled by the accelerator pedal through the ETCS cable.
OBDII Code P1127 Lexus - ECTS Actuator Power Source Circuit Malfunction -

More Information

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