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P2118 2002 Toyota Highlander Code - Throttle Actuator Control Motor Current Range/Performance

Quick Answer

The P2118 diagnostic trouble code for a 2002 Toyota Highlander refers to an issue with the Throttle Actuator Control Motor Current Range/Performance. Common causes include Faulty throttle actuator control motor, Damaged wiring or connectors, Malfunctioning ECM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2118 2002 Toyota Highlander indicates Throttle Actuator Control Motor Current Range/Performance.
Common causes
Common causes include Faulty throttle actuator control motor, Damaged wiring or connectors, Malfunctioning ECM.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P2118 2002 Toyota Highlander Description

The P2118 diagnostic trouble code for a 2002 Toyota Highlander refers to an issue with the Throttle Actuator Control Motor Current Range/Performance. This code indicates that the Engine Control Module (ECM) has detected that the current flowing through the throttle actuator control motor is not within the expected range. The throttle actuator control motor is responsible for controlling the opening and closing of the throttle valve, which regulates the amount of air entering the engine. When this motor is not functioning properly, it can lead to a variety of performance issues in the vehicle.

OBDII Code P2118 2002 Toyota Highlander - Throttle Actuator Control Motor Current Range/Performance
P2118 2002 Toyota Highlander Code - Throttle Actuator Control Motor Current Range/Performance

Common Causes of P2118 2002 Toyota Highlander

  1. Faulty throttle actuator control motor
  2. Damaged wiring or connectors
  3. Malfunctioning ECM
  4. Issue with the throttle body
  5. Electrical problems in the system

Symptoms of P2118 2002 Toyota Highlander

  1. Engine hesitation or stalling
  2. Difficulty accelerating
  3. Lack of power
  4. Rough idling
  5. Poor fuel efficiency

How to Fix P2118 2002 Toyota Highlander

  1. Begin by conducting a thorough inspection of the throttle actuator control motor, wiring, and connectors to check for any visible damage or wear.
  2. Use a multimeter to test the current flowing through the throttle actuator control motor to determine if it is within the specified range.
  3. If the current is out of range, replace the throttle actuator control motor with a new, OEM-quality part.
  4. Clear the diagnostic trouble codes from the ECM using a scan tool and perform a test drive to ensure that the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to identify any underlying issues with the ECM or throttle body.

Cost to Fix P2118 2002 Toyota Highlander

The typical repair costs for addressing a P2118 code on a 2002 Toyota Highlander can vary depending on the exact cause of the issue. In general, the cost of replacing a throttle actuator control motor can range from $200 to $500, including parts and labor. Additional costs may be incurred if there are other components that need to be replaced or if further diagnosis is needed. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your specific location and vehicle.

When is the Code Detected?

The Engine Control Module (ECM) monitors the battery supply voltage applied to the electronic throttle actuator. When the power supply voltage drops below the threshold, the ECM concludes that the power supply circuit has an open circuit. A DTC is set and the MIL is turned on.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2118 2002 Toyota Highlander Code

1. What are the common symptoms of OBDII code P2118 in a 2002 Toyota Highlander?

- Common symptoms include the vehicle going into limp mode, reduced engine power, and the Check Engine light illuminating.

2. What typically causes the OBDII code P2118 in a 2002 Toyota Highlander?

- The code is often triggered by issues with the throttle actuator control motor, such as a faulty motor or wiring, a dirty throttle body, or a malfunctioning throttle position sensor.

3. How can I diagnose the cause of OBDII code P2118 in my 2002 Toyota Highlander?

- Diagnosis involves checking the throttle actuator control motor and its wiring for any signs of damage, testing the throttle position sensor, and inspecting the throttle body for dirt or carbon buildup.

4. Can I still drive my 2002 Toyota Highlander with OBDII code P2118?

- It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potential safety hazards. It's best to have the issue diagnosed and repaired promptly.

5. Is it possible to repair OBDII code P2118 in a 2002 Toyota Highlander myself?

- While some DIY enthusiasts may attempt to address the issue themselves by cleaning the throttle body or checking the wiring, it's advisable to seek professional help for a comprehensive diagnosis and repair.

6. What are the repair options for fixing OBDII code P2118 in a 2002 Toyota Highlander?

- Repair options may include replacing the throttle actuator control motor, repairing or replacing damaged wiring, cleaning the throttle body, or recalibrating the throttle position sensor.

7. How much does it typically cost to repair OBDII code P2118 in a 2002 Toyota Highlander?

- The cost of repair can vary depending on the exact cause of the code and the labor rates in your area. It's recommended to get a few quotes from reputable mechanics to compare prices.

8. Will resetting the OBDII code P2118 in my 2002 Toyota Highlander make it go away permanently?

- Resetting the code may temporarily turn off the Check Engine light, but if the underlying issue causing the code is not addressed, it is likely to return. It's important to diagnose and repair the root cause.

9. Can a faulty throttle actuator control motor cause other issues besides triggering OBDII code P2118 in a 2002 Toyota Highlander?

- Yes, a faulty throttle actuator control motor can cause drivability issues, poor acceleration, rough idling, and reduced fuel efficiency in addition to triggering the specific code.

10. How long can I safely drive my 2002 Toyota Highlander with OBDII code P2118 before getting it repaired?

- It's best to avoid driving the vehicle with this code for an extended period, as it can lead to further damage and safety concerns. It's recommended to address the issue as soon as possible.

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