AutoCodes – Mercury – P0113 Mercury

P0113 Mercury Code - Intake Air Temperature Sensor Circuit High Input

Quick Answer

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted. 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: P0113 Mercury indicates Intake Air Temperature Sensor Circuit High Input.
Common causes: Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted.
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 3,893

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 Oct 07, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0113 Mercury Description

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. The sensor detects intake air temperature and transmits a signal to the Powertrain Control Module (PCM). The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle. It is used by the Powertrain Control Module to assist with the calculation of idle speed, fuel mixture, and spark advance. The Diagnostic Trouble Code (DTC) will set when the PCM detects an excessively high voltage from the sensor.

OBDII Code P0113 Mercury - Intake Air Temperature Sensor Circuit High Input - AutoCodes.com — P0113 Mercury Code - Intake Air Temperature Sensor Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0113 Mercury?

Dirty Air Filter
Faulty Intake Air Temperature (IAT) Sensor
Intake Air Temperature Sensor harness is open or shorted
Intake Air Temperature Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0113 Mercury?

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 does this mean?

Code Tech Notes

Before replacing the Mass Air Flow (MAF) sensor, try replacing the air filter and cleaning the Mass Air Flow sensor with Mass Air Flow sensor cleaner. Reset code and drive the vehicle. If the code comes back, it may be necessary to replace the Mass Air Flow sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0113 Mercury 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.

Need more information about the P0113 Mercury code?

Need more information on how to fix the P0113 Mercury code? Get Access to Factory Service Manuals

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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 P0113 Mercury Code

1. What are the common symptoms of OBDII code P0113 on a Mercury?

- Common symptoms include a decrease in fuel efficiency, rough idling, engine stalling, and illuminated Check Engine Light.

2. What causes the Intake Air Temperature Sensor Circuit High Input on a Mercury?

- The P0113 code is typically triggered by a faulty intake air temperature (IAT) sensor, damaged wiring, or a poor connection to the sensor.

3. How can I diagnose the Intake Air Temperature Sensor Circuit High Input issue on my Mercury?

- To diagnose the issue, you can use a multimeter to test the resistance of the IAT sensor, visually inspect the sensor and wiring for damage, and check for loose connections.

4. Can a dirty air filter trigger the P0113 code on a Mercury?

- Yes, a dirty air filter can cause incorrect readings from the IAT sensor, potentially leading to the P0113 code being triggered.

5. Is it safe to continue driving my Mercury with the P0113 code present?

- It is not recommended to drive your vehicle with the P0113 code present, as it can impact engine performance and fuel efficiency. It's best to address the issue promptly.

6. How much does it typically cost to repair the Intake Air Temperature Sensor Circuit High Input on a Mercury?

- The cost of repairing the P0113 code can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can I fix the P0113 code on my Mercury myself?

- If you have experience working on automotive electrical systems, you may be able to replace the IAT sensor or repair the wiring yourself. Otherwise, it's best to consult a professional mechanic.

8. Will resetting the Check Engine Light resolve the P0113 code on my Mercury?

- Resetting the Check Engine Light may temporarily turn it off, but if the underlying issue causing the P0113 code is not addressed, the light is likely to come back on.

9. How long does it take to repair the Intake Air Temperature Sensor Circuit High Input issue on a Mercury?

- The repair time can vary depending on the complexity of the problem and the availability of parts, but it typically takes around 1-2 hours for a mechanic to diagnose and fix the issue.

10. Can a malfunctioning IAT sensor affect other systems in my Mercury?

- Yes, a malfunctioning IAT sensor can affect the engine's air-fuel mixture, ignition timing, and overall performance, potentially leading to further issues if left unresolved.