Engine-CodesMercury – P2112 Mercury

P2112 Mercury Code - Throttle Actuator Control System - Stuck Closed

Quick Answer

The P2112 code for Mercury vehicles indicates an issue with the Throttle Actuator Control System being stuck closed. Common causes include Faulty throttle actuator motor, Stuck throttle plate, Wiring or electrical issues. 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
P2112 Mercury indicates Throttle Actuator Control System - Stuck Closed.
Common causes
Common causes include Faulty throttle actuator motor, Stuck throttle plate, Wiring or electrical issues.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2112 Mercury Description

The P2112 code for Mercury vehicles indicates an issue with the Throttle Actuator Control System being stuck closed. This system is responsible for controlling the throttle plate opening to regulate the airflow into the engine, which is crucial for proper combustion and engine performance. When the throttle actuator is stuck closed, it means that the throttle plate is not able to open as it should, leading to restricted airflow and potentially causing a variety of performance issues.

OBDII Code P2112 Mercury - Throttle Actuator Control System - Stuck Closed
P2112 Mercury Code - Throttle Actuator Control System - Stuck Closed

Common Causes of P2112 Mercury

  1. Faulty throttle actuator motor
  2. Stuck throttle plate
  3. Wiring or electrical issues
  4. Faulty engine control module (ECM)

Symptoms of P2112 Mercury

  1. Reduced engine power
  2. Poor acceleration
  3. Rough idling
  4. Stalling
  5. Decreased fuel efficiency

How to Fix P2112 Mercury

  1. Perform a thorough inspection of the throttle actuator system to identify the root cause of the issue.
  2. Test the throttle actuator motor to ensure it is functioning correctly or replace it if necessary.
  3. Inspect the throttle plate for any obstructions or damage, and clean or replace it as needed.
  4. Check the wiring and connectors in the throttle actuator system for any faults or damage, repairing or replacing them as required.
  5. If the issue persists, consider testing or replacing the engine control module (ECM) to address any electronic control problems.

Cost to Fix P2112 Mercury

The cost of repairing a Throttle Actuator Control System - Stuck Closed issue can vary depending on the specific cause of the problem and the extent of repairs needed. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it's essential to note that diagnostic time and labor rates at auto repair shops can fluctuate based on various factors. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate for your specific vehicle and location.

When is the Code Detected?

Throttle valve locked during Engine Control Module (ECM) order to open

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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.

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