AutoCodes – Toyota – P2103 2002 Toyota Highlander

P2103 2002 Toyota Highlander Code - Throttle Actuator Control Motor Circuit High

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: P2103 2002 Toyota Highlander indicates Throttle Actuator Control Motor Circuit High.
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 2,251

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 P2103 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 P2103 2002 Toyota Highlander - Throttle Actuator Control Motor Circuit High - AutoCodes.com — P2103 2002 Toyota Highlander Code - Throttle Actuator Control Motor Circuit High

What does this mean?

What are the Possible Causes of the DTC P2103 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 P2103 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 P2103 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 P2103 2002 Toyota Highlander code?

Need more information on how to fix the P2103 2002 Toyota Highlander code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2103 2002 Toyota Highlander code diagnosed by a professional: Find a repair shop in your area

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 P2103 2002 Toyota Highlander Code

1. What are the common symptoms of OBDII code P2103 in a 2002 Toyota Highlander?

- Common symptoms include the engine stalling, lack of power, rough idling, and the vehicle going into limp mode.

2. What causes the OBDII code P2103 in a 2002 Toyota Highlander?

- The P2103 code is typically caused by a faulty throttle actuator control motor or a problem with the throttle position sensor.

3. How can I diagnose the OBDII code P2103 in my 2002 Toyota Highlander?

- Diagnosis involves checking the throttle actuator control motor's wiring, connector, and the motor itself for any signs of damage or malfunction.

4. Can a dirty throttle body cause the OBDII code P2103 in a 2002 Toyota Highlander?

- Yes, a dirty or clogged throttle body can lead to the P2103 code as it affects the proper functioning of the throttle actuator control motor.

5. What are some repair tips for fixing the OBDII code P2103 in a 2002 Toyota Highlander?

- Repair tips include cleaning the throttle body, checking and replacing the throttle position sensor, and testing the throttle actuator control motor.

6. Is it safe to continue driving with the OBDII code P2103 in a 2002 Toyota Highlander?

- It is not recommended to drive with the P2103 code as it can lead to further damage to the engine and other components.

7. How much does it cost to repair the OBDII code P2103 in a 2002 Toyota Highlander?

- The cost of repairs can vary depending on the exact cause of the code, but it typically ranges from $200 to $500 for parts and labor.

8. Can I reset the OBDII code P2103 in my 2002 Toyota Highlander using a code reader?

- Yes, you can reset the code using an OBDII code reader, but it is important to diagnose and fix the underlying issue to prevent the code from reoccurring.

9. Will disconnecting the battery reset the OBDII code P2103 in a 2002 Toyota Highlander?

- Disconnecting the battery may temporarily clear the code, but it is not a recommended method for resolving the underlying issue causing the P2103 code.

10. How can I prevent the OBDII code P2103 from appearing in my 2002 Toyota Highlander in the future?

- To prevent the P2103 code, it is essential to perform regular maintenance on the throttle body, throttle position sensor, and throttle actuator control motor, and address any issues promptly.