AutoCodes – Mazda – P2100 Mazda

P2100 Mazda Code - Throttle Actuator Control Motor Circuit Open

Quick Answer

The electronic Throttle Actuator Control (TAC) is a DC motor controlled by the Powertrain Control Module (PCM). Common causes include Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open, Throttle Actuator Control Motor circuit poor electrical connection. 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: P2100 Mazda indicates Throttle Actuator Control Motor Circuit Open.
Common causes: Common causes include Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open, Throttle Actuator Control Motor circuit poor electrical connection.
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 18,882

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 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2100 Mazda Description

The electronic Throttle Actuator Control (TAC) is a DC motor controlled by the Powertrain Control Module (PCM). There are 2 designs for the TAC, parallel and inline. The parallel design has the motor under the bore parallel to the plate shaft. The motor housing is integrated into the main housing. The inline design has a separate motor housing. An internal spring is used in both designs to return the throttle plate to a default position. The default position is typically a throttle angle of 7 to 8 degrees from the hard stop angle. The closed throttle plate hard stop prevents the throttle from binding in the bore. This hard stop setting is not adjustable and is set to result in less airflow than the minimum engine airflow required at idle.

OBDII Code P2100 Mazda - Throttle Actuator Control Motor Circuit Open - AutoCodes.com — P2100 Mazda Code - Throttle Actuator Control Motor Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2100 Mazda?

Faulty Throttle Actuator Control Motor
Throttle Actuator Control Motor harness is open
Throttle Actuator Control Motor circuit poor electrical connection

How to Fix the DTC P2100 Mazda?

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 P2100 Mazda 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.

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Need Help with the Code?

Get the P2100 Mazda 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 P2100 Mazda Code

1. What are the common symptoms of OBDII code P2100 in a Mazda?

The common symptoms of OBDII code P2100 in a Mazda include the engine stalling, reduced engine power, and the Check Engine light illuminating on the dashboard.

2. What does the OBDII code P2100 in a Mazda indicate?

OBDII code P2100 in a Mazda indicates a problem with the Throttle Actuator Control Motor Circuit being open, which may affect the proper functioning of the throttle.

3. What are the possible causes of OBDII code P2100 in a Mazda?

The possible causes of OBDII code P2100 in a Mazda include a faulty throttle actuator control motor, damaged wiring or connectors in the circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the Throttle Actuator Control Motor Circuit Open issue in my Mazda?

To diagnose the Throttle Actuator Control Motor Circuit Open issue in your Mazda, you can use an OBDII scanner to retrieve the specific fault code, visually inspect the wiring and connectors for any damage, and test the throttle actuator control motor for proper operation.

5. Can I drive my Mazda with OBDII code P2100 present?

It is not recommended to drive your Mazda with OBDII code P2100 present, as it can lead to engine stalling and other potentially dangerous driving conditions. It is best to address the issue promptly.

6. How can I repair OBDII code P2100 in my Mazda?

To repair OBDII code P2100 in your Mazda, you may need to replace the throttle actuator control motor, repair or replace any damaged wiring or connectors, and clear the fault code using an OBDII scanner.

7. Is it possible to reset OBDII code P2100 in a Mazda without fixing the underlying issue?

While you can clear the fault code using an OBDII scanner, it is not recommended to reset OBDII code P2100 in a Mazda without fixing the underlying issue, as the problem may persist and cause further issues.

8. How much does it cost to fix OBDII code P2100 in a Mazda?

The cost to fix OBDII code P2100 in a Mazda can vary depending on the specific cause of the issue and the labor rates in your area. It is recommended to consult a professional mechanic for an accurate cost estimate.

9. Can a DIY enthusiast fix OBDII code P2100 in a Mazda?

While some DIY enthusiasts may have the skills and tools to fix OBDII code P2100 in a Mazda, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.

10. How can I prevent OBDII code P2100 from occurring in my Mazda?

To prevent OBDII code P2100 from occurring in your Mazda, it is important to perform regular maintenance on the throttle system, address any warning signs promptly, and avoid driving aggressively, which can strain the throttle components.