AutoCodes – Mazda – P2108 Mazda

P2108 Mazda Code - Throttle Actuator Control Module Performance

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 (TAC) module, Throttle Actuator Control (TAC) module harness is open or shorted, Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires). 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: P2108 Mazda indicates Throttle Actuator Control Module Performance.
Common causes: Common causes include Faulty Throttle Actuator Control (TAC) module, Throttle Actuator Control (TAC) module harness is open or shorted, Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires).
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 10,375

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2108 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. The P2107 code is set when the Electronic Throttle Control (ETC) control area of the Powertrain Control Module (PCM) failed test. Fault code could the result of incorrect Throttle Position (TP) command of the Throttle Actuator Control Module (TACM).

OBDII Code P2108 Mazda - Throttle Actuator Control Module Performance - AutoCodes.com — P2108 Mazda Code - Throttle Actuator Control Module Performance

What does this mean?

What are the Possible Causes of the DTC P2108 Mazda?

Faulty Throttle Actuator Control (TAC) module
Throttle Actuator Control (TAC) module harness is open or shorted
Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires)

How to Fix the DTC P2108 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 P2108 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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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 P2108 Mazda Code

1. What are common symptoms of OBDII code P2108 in a Mazda related to the Throttle Actuator Control Module Performance?

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

2. What are the possible causes of OBDII code P2108 in a Mazda?

- The code P2108 in a Mazda may be triggered by a faulty throttle actuator control module, a damaged throttle body, wiring issues, or a malfunctioning accelerator pedal position sensor.

3. How can I diagnose the cause of OBDII code P2108 in my Mazda?

- Diagnosing code P2108 involves using a diagnostic scanner to read the code, checking the throttle actuator control module for proper function, inspecting the throttle body and related wiring, and testing the accelerator pedal position sensor.

4. Can I drive my Mazda with OBDII code P2108 present?

- It is not recommended to drive your Mazda with code P2108 present, as it can lead to unsafe driving conditions due to potential loss of power and engine stalling.

5. How can I repair OBDII code P2108 in my Mazda related to the Throttle Actuator Control Module Performance?

- Repairing code P2108 may involve replacing the throttle actuator control module, repairing or replacing damaged wiring, cleaning or replacing the throttle body, or recalibrating the accelerator pedal position sensor.

6. Is it possible to reset OBDII code P2108 in a Mazda without repairing the issue?

- While you can reset the code using a diagnostic scanner, it is important to address the underlying issue causing code P2108 to prevent further damage and ensure safe operation of your Mazda.

7. Can a DIY mechanic fix OBDII code P2108 in a Mazda?

- Depending on your level of experience and access to tools, some DIY mechanics may be able to address code P2108 by following repair guides and using proper diagnostic equipment.

8. How much does it typically cost to repair OBDII code P2108 in a Mazda at a mechanic or dealership?

- The cost of repairing code P2108 in a Mazda can vary depending on the exact cause of the issue, but it may range from $200 to $600 at a mechanic or dealership.

9. Are there any preventive maintenance tips to avoid encountering OBDII code P2108 in a Mazda?

- Regularly inspecting and cleaning the throttle body, checking the throttle actuator control module for signs of wear, and addressing any warning signs of engine performance issues can help prevent code P2108 from occurring.

10. How urgent is it to address OBDII code P2108 in a Mazda once it is detected?

- It is recommended to address code P2108 in a Mazda promptly to prevent potential safety hazards, further damage to engine components, and costly repairs down the line.