AutoCodes – Toyota – P2102 Toyota

P2102 Toyota Code - Throttle Actuator Control Motor Circuit Low

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: P2102 Toyota indicates Throttle Actuator Control Motor Circuit Low.
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.

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Code Popularity 39,278

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 Sep 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2102 Toyota 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 P2102 Toyota - Throttle Actuator Control Motor Circuit Low - AutoCodes.com — P2102 Toyota Code - Throttle Actuator Control Motor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2102 Toyota?

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 P2102 Toyota?

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 Toyota 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 Toyota code?

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Information for Specific Toyota Models

P2102 2006 Toyota Camry — Throttle Actuator Control Motor Circuit Low
P2102 2007 Toyota Camry — Throttle Actuator Control Motor Circuit Low
P2102 2008 Toyota Camry — Throttle Actuator Control Motor Circuit Low
P2102 2009 Toyota Camry — Throttle Actuator Control Motor Circuit Low
P2102 2010 Toyota Camry — Throttle Actuator Control Motor Circuit Low
P2102 2011 Toyota Camry — Throttle Actuator Control Motor Circuit Low
P2102 2001 Toyota Highlander — Throttle Actuator Control Motor Circuit Low
P2102 2002 Toyota Highlander — Throttle Actuator Control Motor Circuit Low
P2102 2003 Toyota Highlander — Throttle Actuator Control Motor Circuit Low
P2102 2004 Toyota Highlander — Throttle Actuator Control Motor Circuit Low
P2102 2005 Toyota Highlander — Throttle Actuator Control Motor Circuit Low
P2102 2006 Toyota Highlander — Throttle Actuator Control Motor Circuit Low
P2102 2007 Toyota Highlander — Throttle Actuator Control Motor Circuit Low
P2102 2004 Toyota Prius — Throttle Actuator Control Motor Circuit Low
P2102 2005 Toyota Prius — Throttle Actuator Control Motor Circuit Low
P2102 2006 Toyota Prius — Throttle Actuator Control Motor Circuit Low
P2102 2007 Toyota Prius — Throttle Actuator Control Motor Circuit Low
P2102 2008 Toyota Prius — Throttle Actuator Control Motor Circuit Low
P2102 2009 Toyota Prius — Throttle Actuator Control Motor Circuit Low
P2102 2013 Toyota RAV4 — Throttle Actuator Control Motor Circuit Low
P2102 2014 Toyota RAV4 — Throttle Actuator Control Motor Circuit Low
P2102 2015 Toyota RAV4 — Throttle Actuator Control Motor Circuit Low
P2102 2016 Toyota RAV4 — Throttle Actuator Control Motor Circuit Low
P2102 2017 Toyota RAV4 — Throttle Actuator Control Motor Circuit Low
P2102 2018 Toyota RAV4 — Throttle Actuator Control Motor Circuit Low

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.