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P2108 Cadillac Code - Throttle Actuator Control Module Performance

Quick Answer

The P2108 code for Cadillac vehicles indicates a problem with the Throttle Actuator Control Module (TACM) performance. Common causes include Faulty throttle actuator control module, Wiring or connector issues, Dirty throttle body. 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 Cadillac indicates Throttle Actuator Control Module Performance.
Common causes
Common causes include Faulty throttle actuator control module, Wiring or connector issues, Dirty throttle body.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2108 Cadillac Description

The P2108 code for Cadillac vehicles indicates a problem with the Throttle Actuator Control Module (TACM) performance. The TACM is responsible for controlling the throttle valve's opening and closing in response to driver input. When this code is triggered, it means that the TACM is not functioning as intended, which can lead to a variety of issues with the vehicle's performance.

OBDII Code P2108 Cadillac - Throttle Actuator Control Module Performance
P2108 Cadillac Code - Throttle Actuator Control Module Performance

Common Causes of P2108 Cadillac

  1. Faulty throttle actuator control module
  2. Wiring or connector issues
  3. Dirty throttle body
  4. Electronic control unit (ECU) malfunction
  5. Software glitches or programming errors

Symptoms of P2108 Cadillac

  1. Rough idling or engine stalling
  2. Hesitation or lack of response when pressing the accelerator
  3. Reduced fuel efficiency
  4. Check Engine Light illuminated on the dashboard
  5. Inability to start the vehicle

How to Fix P2108 Cadillac

  1. Begin by diagnosing the specific cause of the issue using a professional diagnostic scanner to retrieve the trouble codes and perform thorough testing of the TACM components.
  2. Inspect the wiring and connectors for any signs of damage or corrosion, ensuring good electrical connections.
  3. Clean the throttle body to remove any carbon buildup or debris that may be affecting its operation.
  4. If the TACM is found to be faulty, replace it with a new OEM part to ensure proper functionality.
  5. Reset the ECU and perform a throttle relearn procedure to recalibrate the system and clear any stored error codes.

Cost to Fix P2108 Cadillac

The cost of repairing a P2108 code on a Cadillac vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can fluctuate, so it's recommended to get quotes from multiple auto repair shops to find the best deal. Additionally, prices may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive rates.

What does this mean?

Tech Notes for P2108 Cadillac

There is a factory service bulletin for the P2108 code on following Cadillac vehicles:



2006 Cadillac Escalade

2007 Cadillac Escalade

2006-2007 Cadillac Escalade Factory Service Bulletin OBDII Code P2108

When is the Code Detected?

The Throttle Actuator Control (TAC) module is unable to write or read data from the Random Access Memory (RAM)

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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 Cadillac Code

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  • Replaced throttle body on my 2004 Escalade. P2108 came back and also have P0430. Replaced Cat and both O2 sensors. Code P0430 came back up a day later.

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  • Did you used new factory parts? It's very strange that you have replaced all the parts and the code still comeback.

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