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P0112 Lincoln Code - Intake Air Temperature Sensor 1 Circuit Low Input

Quick Answer

The P0112 diagnostic trouble code (DTC) for Lincoln vehicles refers to the Intake Air Temperature Sensor 1 Circuit Low Input. Common causes include Faulty intake air temperature sensor, Damaged or corroded sensor wiring, Loose or poor electrical connections. 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
P0112 Lincoln indicates Intake Air Temperature Sensor 1 Circuit Low Input.
Common causes
Common causes include Faulty intake air temperature sensor, Damaged or corroded sensor wiring, Loose or poor electrical connections.
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 12, 2024
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Code P0112 Lincoln Description

The P0112 diagnostic trouble code (DTC) for Lincoln vehicles refers to the Intake Air Temperature Sensor 1 Circuit Low Input. This code indicates that the Engine Control Module (ECM) has detected a lower than expected voltage signal from the intake air temperature sensor. The intake air temperature sensor is a crucial component that measures the temperature of the air entering the engine. This information is used by the ECM to adjust the air-fuel mixture for optimal combustion and engine performance.

OBDII Code P0112 Lincoln - Intake Air Temperature Sensor 1 Circuit Low Input
P0112 Lincoln Code - Intake Air Temperature Sensor 1 Circuit Low Input

Common Causes of P0112 Lincoln

  1. Faulty intake air temperature sensor
  2. Damaged or corroded sensor wiring
  3. Loose or poor electrical connections
  4. ECM software issues
  5. Intake air leaks near the sensor

Symptoms of P0112 Lincoln

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Hesitation or lack of power during acceleration
  4. Check Engine Light illuminated
  5. Increased emissions

How to Fix P0112 Lincoln

  1. Begin by locating the intake air temperature sensor, typically located near the air intake duct or air filter housing.
  2. Inspect the sensor and wiring for any visible damage, corrosion, or loose connections. Replace or repair any damaged components.
  3. Test the intake air temperature sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is faulty.
  4. Clear the DTC using an OBD-II scanner and test drive the vehicle to verify that the code does not return.
  5. If the code persists, further diagnostics may be necessary to identify any underlying issues with the ECM or wiring harness.

Cost to Fix P0112 Lincoln

The typical repair costs for addressing the P0112 code on a Lincoln vehicle can vary depending on the specific model and year. In general, the cost of replacing the intake air temperature sensor and addressing any related wiring issues can range from $100 to $300 for parts and labor. However, it is important to note that diagnostic time and labor rates at auto repair shops can vary significantly based on location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate based on your specific circumstances.

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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 P0112 Lincoln Code

1. What are the common symptoms of OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

The common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and potentially stalling.

2. What typically causes the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

The code P0112 usually indicates a faulty intake air temperature sensor, a damaged sensor connector or wiring, or issues with the sensor circuit.

3. How can I diagnose the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

Diagnosing this code involves checking the intake air temperature sensor for proper operation, inspecting the wiring and connector for damage, and using a multimeter to test the sensor circuit.

4. Can a dirty air filter trigger the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

Yes, a dirty air filter can affect the intake air temperature readings and potentially trigger the code P0112. It's recommended to check and replace a dirty air filter if necessary.

5. Is it safe to continue driving with the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

Continuing to drive with this code may lead to poor engine performance and reduced fuel efficiency. It's advisable to address the issue promptly to prevent further damage.

6. How can I repair the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

Repairing this code may involve replacing the intake air temperature sensor, repairing any damaged wiring or connectors, or resetting the fault code after addressing the underlying issue.

7. Are there any DIY tips for fixing the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

DIY enthusiasts can attempt to visually inspect the sensor and its connections, clean any dirt or debris, and carefully check the wiring for any visible damage before considering sensor replacement.

8. Can extreme weather conditions trigger the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

Yes, extreme temperatures can affect the intake air temperature readings and potentially trigger the code P0112. It's important to consider the environmental factors when diagnosing this issue.

9. How much does it typically cost to repair the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input?

The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $100 to $300, including parts and labor.

10. Will resetting the OBDII code P0112 in a Lincoln related to the Intake Air Temperature Sensor 1 Circuit Low Input make it go away permanently?

Resetting the code without addressing the underlying problem will not make it go away permanently. It's crucial to diagnose and repair the root cause to prevent the code from reoccurring.

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