AutoCodes – Toyota – P2103 2010 Toyota Camry

P2103 2010 Toyota Camry 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 2010 Toyota Camry 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 3,531

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 2010 Toyota Camry 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 2010 Toyota Camry - Throttle Actuator Control Motor Circuit High - AutoCodes.com — P2103 2010 Toyota Camry Code - Throttle Actuator Control Motor Circuit High

What does this mean?

What are the Possible Causes of the DTC P2103 2010 Toyota Camry?

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 2010 Toyota Camry?

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 2010 Toyota Camry 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 2010 Toyota Camry code?

Need more information on how to fix the P2103 2010 Toyota Camry code? Get Access to Factory Service Manuals

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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 P2103 2010 Toyota Camry Code

1. What does the OBDII code P2103 mean for a 2010 Toyota Camry?

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

2. What are the common symptoms of P2103 in a 2010 Toyota Camry?

Symptoms may include reduced engine power, poor throttle response, the Check Engine Light illuminated, and the vehicle entering "limp mode."

3. What causes the P2103 code to appear in a Toyota Camry?

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

4. Can I drive my 2010 Toyota Camry with a P2103 code?

Driving with a P2103 code is not recommended, as the vehicle may experience reduced power or throttle control issues, which could be unsafe.

5. How do I diagnose the P2103 code on a 2010 Toyota Camry?

Diagnosis involves checking the throttle actuator motor, inspecting the wiring and connectors for damage, and testing the voltage and continuity of the TAC circuit.

6. How can I fix the P2103 code on my Toyota Camry?

Repairs may include replacing the throttle actuator motor, repairing or replacing damaged wiring or connectors, or, in rare cases, reprogramming or replacing the ECM.

7. How much does it cost to fix the P2103 code on a 2010 Toyota Camry?

Repair costs vary but generally range from $200 to $600 depending on whether the throttle actuator motor or wiring needs to be replaced.

8. Can a dirty throttle body trigger the P2103 code?

While uncommon, a dirty or obstructed throttle body could contribute to throttle actuator issues and should be inspected during diagnosis.

9. Does P2103 require replacing the entire throttle body?

Not always. The issue may be isolated to the actuator motor or wiring. The entire throttle body should only be replaced if the motor cannot be serviced separately.

10. Can a weak battery cause the P2103 code in a Toyota Camry?

Yes, a weak or failing battery can cause voltage irregularities that may trigger the P2103 code. Always check the battery and charging system as part of the diagnosis.