Engine-Codes.com
Engine-Codes – Honda – P0112 2008 Honda Accord

P0112 2008 Honda Accord Code - Intake Air Temperature Circuit Low Voltage

Quick Answer

The P0112 diagnostic trouble code (DTC) for a 2008 Honda Accord indicates a problem with the Intake Air Temperature (IAT) sensor circuit registering a low voltage. Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring/connectors in the IAT sensor circuit, ECM malfunction. 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 2008 Honda Accord indicates Intake Air Temperature Circuit Low Voltage.
Common causes
Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring/connectors in the IAT sensor circuit, ECM malfunction.
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 13, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0112 2008 Honda Accord Description

The P0112 diagnostic trouble code (DTC) for a 2008 Honda Accord indicates a problem with the Intake Air Temperature (IAT) sensor circuit registering a low voltage. The IAT sensor is responsible for measuring the temperature of the air entering the engine, which is crucial for determining the air-fuel mixture needed for combustion. When the voltage from the IAT sensor is lower than expected, it can lead to incorrect fuel delivery, affecting engine performance and efficiency.

OBDII Code P0112 2008 Honda Accord - Intake Air Temperature Circuit Low Voltage
P0112 2008 Honda Accord Code - Intake Air Temperature Circuit Low Voltage

Common Causes of P0112 2008 Honda Accord

  1. Faulty Intake Air Temperature (IAT) sensor.
  2. Damaged or corroded wiring/connectors in the IAT sensor circuit.
  3. ECM malfunction.
  4. Air intake system leaks.
  5. Engine coolant temperature sensor issues.

Symptoms of P0112 2008 Honda Accord

  1. Check Engine Light illuminated on the dashboard.
  2. Reduced fuel efficiency.
  3. Rough idling or engine stalling.
  4. Hesitation during acceleration.
  5. Poor engine performance.

How to Fix P0112 2008 Honda Accord

  1. Begin by connecting a diagnostic scan tool to retrieve the specific trouble codes and freeze frame data.
  2. Inspect the IAT sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Test the IAT sensor's resistance and voltage output using a multimeter to ensure it is functioning correctly.
  4. Check the ECM for any fault codes related to the IAT sensor circuit and address any additional issues.
  5. Clear the trouble codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0112 2008 Honda Accord

The typical repair costs for addressing a P0112 code on a 2008 Honda Accord can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also influence repair costs. For a more accurate estimate, it is recommended to consult local auto repair shops.

When is the Code Detected?

An excessively low voltage from the sensor is sent to ECM.

Need more information about the P0112 2008 Honda Accord code?

Need more information on how to fix the P0112 2008 Honda Accord code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0112 2008 Honda Accord code diagnosed by a professional: Find a repair shop in your area

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 2008 Honda Accord Code

1. What are the common symptoms of OBDII code P0112 on a 2008 Honda Accord?

The common symptoms of code P0112 include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.

2. What does the OBDII code P0112 indicate on a 2008 Honda Accord?

Code P0112 indicates a fault in the Intake Air Temperature (IAT) sensor circuit, specifically reporting low voltage to the engine control module.

3. What are the possible causes of OBDII code P0112 on a 2008 Honda Accord?

Possible causes of code P0112 include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, a malfunctioning engine control module (ECM), or issues with the IAT sensor's ground connection.

4. How can I diagnose the Intake Air Temperature sensor on a 2008 Honda Accord with OBDII code P0112?

To diagnose the IAT sensor, you can use a multimeter to test for proper voltage and resistance. Check the sensor's wiring and connectors for any signs of damage or corrosion that may be causing the low voltage issue.

5. Can a dirty air filter cause OBDII code P0112 on a 2008 Honda Accord?

Yes, a dirty air filter can indirectly affect the IAT sensor readings by altering the intake air temperature. It is recommended to check and replace a dirty air filter if necessary when troubleshooting code P0112.

6. How do I repair OBDII code P0112 on a 2008 Honda Accord?

To repair code P0112, start by inspecting the IAT sensor and its circuit for any faults. Replace the sensor if necessary, repair any damaged wiring or connectors, and clear the code with an OBDII scanner to see if the issue is resolved.

7. Is it safe to drive a 2008 Honda Accord with OBDII code P0112?

It is not recommended to drive a vehicle with an active OBDII code, as it can lead to further engine damage or safety hazards. It's best to address the underlying issue causing code P0112 before continuing to drive the vehicle.

8. Will resetting the OBDII code P0112 on a 2008 Honda Accord make it go away permanently?

Resetting the code may temporarily clear the check engine light, but if the underlying issue causing code P0112 is not fixed, the code is likely to return. It's crucial to diagnose and repair the root cause of the problem.

9. Can a faulty IAT sensor cause other OBDII codes to appear on a 2008 Honda Accord?

Yes, a faulty IAT sensor can sometimes trigger other related codes, such as P0111 (IAT sensor circuit range/performance problem) or P0113 (IAT sensor circuit high voltage), depending on the nature of the sensor's malfunction.

10. How much does it typically cost to repair OBDII code P0112 on a 2008 Honda Accord?

The cost of repairing code P0112 can vary depending on the specific cause of the issue. In general, replacing an IAT sensor can cost between $50 to $150, while addressing wiring or ECM problems may involve additional labor costs.

Discuss the causes and fixes for P0112 2008 Honda Accord OBDII Code

Submit a New Comment

Code P0112 2008 Honda Accord comments

No comments found for this page.