AutoCodesScion – P2103 Scion

P2103 Scion Code - Throttle Actuator Control Motor Circuit High

Quick Answer

The Throttle Actuator is operated by the Engine Control Module (ECM) and opens and closes the throttle valve using gears. Common causes include Dirty throttle body, Faulty Throttle Actuator, Throttle Actuator 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 Scion indicates Throttle Actuator Control Motor Circuit High.
Common causes
Common causes include Dirty throttle body, Faulty Throttle Actuator, Throttle Actuator 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 4,270
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 16, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2103 Scion Description

The Throttle Actuator is operated by the Engine Control Module (ECM) and opens and closes the throttle valve using gears.
The opening angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle with motor body assembly. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to appropriately control the throttle actuator and monitor the throttle opening angle as the ECM responds to driver inputs.
The ECM monitors the electrical current through the electronic actuator and detects malfunctions and open circuits in the throttle actuator based on this value. If the current is outside the standard range, the ECM determines that there is a malfunction in the throttle actuator. In addition, if the throttle valve does not function properly (for example, stuck on), the ECM determines that there is a malfunction. The ECM then illuminates the MIL and stores a Diagnostic Trouble Code (DTC).
OBDII Code P2103 Scion - Throttle Actuator Control Motor Circuit High - AutoCodes.com
P2103 Scion Code - Throttle Actuator Control Motor Circuit High

What are the Possible Causes of the DTC P2103 Scion?

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

How to Fix the DTC P2103 Scion?

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 Scion 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 Scion code?

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

Need Help with the Code?

Get the P2103 Scion 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 Scion Code

1. What does the OBDII code P2103 mean for a Scion?

P2103 indicates a problem with the Throttle Actuator Control (TAC) motor circuit, specifically a high voltage condition.

2. What are the common symptoms of code P2103 in a Scion?

Symptoms may include reduced engine performance, limp mode activation, poor throttle response, and the illumination of the check engine light.

3. What causes the P2103 code to appear in my Scion?

Common causes include a faulty throttle actuator motor, damaged wiring or connectors in the TAC circuit, or a malfunctioning engine control module (ECM).

4. Can I drive my Scion with the P2103 code?

It is not recommended to drive with this code as it can cause reduced performance and potential safety issues due to limited throttle control.

5. How do I diagnose the P2103 code on my Scion?

Diagnosis involves inspecting the throttle actuator motor, checking for damaged wiring or loose connections, and testing the voltage and resistance of the TAC circuit.

6. How do I fix the P2103 code on my Scion?

Repairs may include replacing the throttle actuator motor, repairing or replacing damaged wiring, cleaning the throttle body, or reprogramming the ECM if necessary.

7. Can a dirty throttle body cause the P2103 code?

While less common, a dirty throttle body can potentially affect the throttle actuator motor's functionality and cause related issues.

8. How much does it cost to repair the P2103 code on a Scion?

Repair costs vary but typically range from $200 to $700, depending on whether the throttle actuator motor or other components need replacement.

9. Will disconnecting the battery clear the P2103 code in my Scion?

Disconnecting the battery may temporarily clear the code, but it won’t fix the underlying issue causing the problem.

10. Is the P2103 code specific to Scion vehicles?

No, the P2103 code can appear on any vehicle with an OBDII system, but its exact diagnosis and repair may vary by make and model.

Discuss the causes and fixes for P2103 Scion OBDII Code

Code P2103 Scion comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play