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P0112 2018 Honda CR-V Code - Intake Air Temperature Sensor 1 Circuit Low Voltage

Quick Answer

The P0112 diagnostic trouble code (DTC) for the 2018 Honda CR-V indicates a problem with the Intake Air Temperature (IAT) Sensor 1 Circuit registering low voltage. Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring in the sensor circuit, Loose or disconnected electrical connectors. 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 2018 Honda CR-V indicates Intake Air Temperature Sensor 1 Circuit Low Voltage.
Common causes
Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring in the sensor circuit, Loose or disconnected electrical connectors.
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 11, 2024
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Code P0112 2018 Honda CR-V Description

The P0112 diagnostic trouble code (DTC) for the 2018 Honda CR-V indicates a problem with the Intake Air Temperature (IAT) Sensor 1 Circuit registering low voltage. The IAT sensor is a critical component of the engine management system, as it measures the temperature of the incoming air to the engine. This information is used by the engine control module (ECM) to adjust fuel delivery and ignition timing for optimal performance and efficiency. When the sensor reports low voltage, it can disrupt the engine's ability to operate smoothly and efficiently.

OBDII Code P0112 2018 Honda CR-V - Intake Air Temperature Sensor 1 Circuit Low Voltage
P0112 2018 Honda CR-V Code - Intake Air Temperature Sensor 1 Circuit Low Voltage

Common Causes of P0112 2018 Honda CR-V

  1. Faulty Intake Air Temperature (IAT) sensor.
  2. Damaged or corroded wiring in the sensor circuit.
  3. Loose or disconnected electrical connectors.
  4. ECM malfunction.
  5. Environmental factors affecting sensor readings (e.g., heat from the engine).

Symptoms of P0112 2018 Honda CR-V

  1. Illuminated check engine light on the dashboard.
  2. Decreased fuel efficiency.
  3. Rough idling or stalling.
  4. Reduced engine performance.
  5. Potential engine misfires.

How to Fix P0112 2018 Honda CR-V

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific DTC (P0112).
  2. Inspect the IAT sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the IAT sensor's resistance and voltage output to determine if it is functioning correctly.
  4. Replace the IAT sensor if it is faulty, ensuring the new sensor is compatible with the vehicle.
  5. Clear the DTC from the ECM memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0112 2018 Honda CR-V

The cost of repairing the Intake Air Temperature Sensor 1 Circuit Low Voltage issue on a 2018 Honda CR-V can vary depending on the specific cause of the problem and the labor rates in your area. Generally, the cost of a new IAT sensor can range from $20 to $100, while the labor cost for diagnosis and replacement can be between $100 and $200. Overall, the total repair cost could range from $120 to $300. Keep in mind that prices may fluctuate based on location, dealership rates, and the quality of the replacement parts used. It is advisable to consult with a trusted mechanic or auto repair shop to get an accurate estimate for your particular situation.

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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 2018 Honda CR-V Code

1. What are the common symptoms of OBDII code P0112 in a 2018 Honda CR-V?

The common symptoms of OBDII code P0112 in a 2018 Honda CR-V include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.

2. What does the OBDII code P0112 on a 2018 Honda CR-V mean?

OBDII code P0112 in a 2018 Honda CR-V indicates a problem with the Intake Air Temperature Sensor 1 Circuit registering low voltage.

3. What are the possible causes of OBDII code P0112 in a 2018 Honda CR-V?

Possible causes of OBDII code P0112 in a 2018 Honda CR-V include a faulty intake air temperature sensor, damaged sensor wiring, or a problem in the sensor circuit.

4. How can I diagnose the Intake Air Temperature Sensor 1 Circuit on my 2018 Honda CR-V for code P0112?

To diagnose the Intake Air Temperature Sensor 1 Circuit on your 2018 Honda CR-V for code P0112, you can use a multimeter to test the sensor's resistance and voltage, visually inspect the sensor and its wiring for any damage, and check for loose connections.

5. Can I drive my 2018 Honda CR-V with OBDII code P0112?

It is not recommended to drive your 2018 Honda CR-V with OBDII code P0112 as it can lead to poor engine performance and potential damage. It is best to address the issue promptly.

6. How do I repair OBDII code P0112 in my 2018 Honda CR-V?

To repair OBDII code P0112 in your 2018 Honda CR-V, you may need to replace the intake air temperature sensor, repair or replace damaged sensor wiring, or address any issues in the sensor circuit.

7. Is it safe to reset the OBDII code P0112 in my 2018 Honda CR-V without fixing the underlying issue?

It is not recommended to simply reset the OBDII code P0112 in your 2018 Honda CR-V without addressing the underlying problem, as it may lead to continued poor engine performance and potential damage.

8. Can a dirty air filter cause OBDII code P0112 in a 2018 Honda CR-V?

Yes, a dirty air filter can indirectly cause OBDII code P0112 in a 2018 Honda CR-V by affecting the air intake temperature readings. It is advisable to check and replace the air filter as part of the troubleshooting process.

9. How can I prevent OBDII code P0112 from occurring in my 2018 Honda CR-V?

To prevent OBDII code P0112 in your 2018 Honda CR-V, you can perform regular maintenance checks on the intake air temperature sensor, ensure proper air filter maintenance, and address any engine performance issues promptly.

10. Can a DIY enthusiast fix OBDII code P0112 in a 2018 Honda CR-V?

Depending on your skill level and access to tools, a DIY enthusiast may be able to fix OBDII code P0112 in a 2018 Honda CR-V by following repair guides, using diagnostic tools, and replacing the intake air temperature sensor or addressing wiring issues.

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