Lexus Acura Error Code P1125: How to Fix It

Q: Can I drive with P1125 error code?

It's not recommended to drive with P1125 as it affects throttle control and can cause unpredictable acceleration, stalling, or reduced power. Have it diagnosed and repaired as soon as possible.

Q: What causes P1125 throttle motor circuit error?

Common causes include faulty throttle body motor, damaged wiring or connectors, carbon buildup on throttle plate, failed throttle position sensor, or issues with the engine control module.

Q: How much does it cost to fix P1125?

Repair costs vary from $50-200 for cleaning and minor repairs to $300-800 for throttle body replacement, depending on your vehicle model and labor rates in your area.

Q: Will disconnecting the battery clear P1125?

Disconnecting the battery may temporarily clear the code from the display, but if the underlying problem isn't fixed, the code will return after driving the vehicle.

Q: Is P1125 the same on all Lexus and Acura models?

P1125 generally refers to throttle motor circuit issues across most Lexus and Acura models, but specific diagnostic procedures may vary by year and engine type. Always consult your vehicle's service manual.

Abstract

The P1125 error code indicates a malfunction in your vehicle's throttle motor circuit, which controls the electronic throttle body that regulates airflow into the engine. This is a high-severity issue that can cause poor acceleration, rough idling, or even prevent your vehicle from starting properly.