AutoCodes – Toyota – P2102 2002 Toyota Highlander

P2102 2002 Toyota Highlander Code - Throttle Actuator Control Motor Circuit Low

Quick Answer

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open. 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: P2102 2002 Toyota Highlander indicates Throttle Actuator Control Motor Circuit Low.
Common causes: Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open.
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.

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Code Popularity 2,069

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2102 2002 Toyota Highlander Description

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to control the throttle actuator and monitor the throttle opening angle in response to driver inputs.

OBDII Code P2102 2002 Toyota Highlander - Throttle Actuator Control Motor Circuit Low - AutoCodes.com — P2102 2002 Toyota Highlander Code - Throttle Actuator Control Motor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2102 2002 Toyota Highlander?

Dirty throttle body
Faulty Throttle Actuator Control Motor
Throttle Actuator Control Motor harness is open
Throttle Actuator Control Motor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2102 2002 Toyota Highlander?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2102 2002 Toyota Highlander code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2102 2002 Toyota Highlander code?

Need more information on how to fix the P2102 2002 Toyota Highlander code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P2102 2002 Toyota Highlander Code

1. What are the common symptoms of OBDII code P2102 in a 2002 Toyota Highlander?

The common symptoms of code P2102 include the vehicle entering limp mode, loss of power, acceleration issues, and the Check Engine light illuminating.

2. What does the OBDII code P2102 indicate in a 2002 Toyota Highlander?

Code P2102 indicates a problem with the Throttle Actuator Control Motor Circuit being low, meaning there is an issue with the electrical signal sent to the throttle actuator control motor.

3. What are the possible causes of OBDII code P2102 in a 2002 Toyota Highlander?

Possible causes of code P2102 include a faulty throttle actuator control motor, damaged wiring or connectors in the circuit, a faulty throttle position sensor, or a problem with the engine control module.

4. How can I diagnose the OBDII code P2102 in my 2002 Toyota Highlander?

Diagnosing code P2102 involves checking the throttle actuator control motor and its wiring for any visible damage, testing the throttle position sensor, and using a scan tool to monitor the signals sent to the throttle actuator.

5. Can I drive my 2002 Toyota Highlander with OBDII code P2102?

It is not recommended to drive your vehicle with code P2102, as it can lead to performance issues and potentially unsafe driving conditions. It is best to address the issue promptly.

6. How can I repair OBDII code P2102 in my 2002 Toyota Highlander?

Repairing code P2102 may involve replacing the throttle actuator control motor, repairing or replacing damaged wiring or connectors, replacing the throttle position sensor, or reprogramming the engine control module.

7. Will resetting the Check Engine light fix OBDII code P2102 in my 2002 Toyota Highlander?

Resetting the Check Engine light may temporarily turn it off, but it will not fix the underlying issue causing code P2102. It is important to diagnose and repair the problem to prevent it from recurring.

8. Is OBDII code P2102 a common issue in 2002 Toyota Highlanders?

While code P2102 may not be extremely common in 2002 Toyota Highlanders, it can still occur due to various factors like wear and tear on components or electrical issues.

9. Can a DIY enthusiast fix OBDII code P2102 in a 2002 Toyota Highlander?

Depending on the individual's mechanical skills and access to tools, a DIY enthusiast may be able to address code P2102 by following diagnostic procedures and replacing faulty components. However, professional help is recommended for complex electrical issues.

10. How much can I expect to pay for repairing OBDII code P2102 in a 2002 Toyota Highlander?

The cost of repairing code P2102 can vary depending on the specific cause of the issue and whether you choose to fix it yourself or seek professional help. Costs may include parts and labor, so it's best to get a diagnostic and repair estimate from a trusted mechanic.