P0112 Honda Code - Intake Air Temperature Sensor 1 Circuit Low Voltage
Quick Answer
The Intake Air Temperature (IAT) Sensor 1 is a thermistor that detects intake air temperature, and it is used for air/fuel ratio feedback control to compensate for the atmospheric density fluctuations that accompany changes in intake air temperature. Common causes include Faulty Intake Air Temperature (IAT) Sensor 1, Intake Air Temperature Sensor 1 harness is open or shorted, Intake Air Temperature Sensor 1 circuit poor electrical connection. 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 Honda indicates Intake Air Temperature Sensor 1 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) Sensor 1, Intake Air Temperature Sensor 1 harness is open or shorted, Intake Air Temperature Sensor 1 circuit poor electrical connection.
- 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.
Code P0112 Honda Description
What are the Possible Causes of the DTC P0112 Honda?
- Faulty Intake Air Temperature (IAT) Sensor 1
- Intake Air Temperature Sensor 1 harness is open or shorted
- Intake Air Temperature Sensor 1 circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P0112 Honda?
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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0112 Honda 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.
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Information for Specific Honda Models
- P0112 2008 Honda Accord — Intake Air Temperature Circuit Low Voltage
- P0112 2009 Honda Accord — Intake Air Temperature Circuit Low Voltage
- P0112 2010 Honda Accord — Intake Air Temperature Circuit Low Voltage
- P0112 1996 Honda Civic — Intake Air Temperature Circuit Low Voltage
- P0112 1997 Honda Civic — Intake Air Temperature Circuit Low Voltage
- P0112 1998 Honda Civic — Intake Air Temperature Circuit Low Voltage
- P0112 1999 Honda Civic — Intake Air Temperature Circuit Low Voltage
- P0112 2000 Honda Civic — Intake Air Temperature Circuit Low Voltage
- P0112 2016 Honda CR-V — Intake Air Temperature Sensor 1 Circuit Low Voltage
- P0112 2017 Honda CR-V — Intake Air Temperature Sensor 1 Circuit Low Voltage
- P0112 2018 Honda CR-V — Intake Air Temperature Sensor 1 Circuit Low Voltage
- P0112 2019 Honda CR-V — Intake Air Temperature Sensor 1 Circuit Low Voltage
- P0112 2020 Honda CR-V — Intake Air Temperature Sensor 1 Circuit Low Voltage
- P0112 2021 Honda CR-V — Intake Air Temperature Sensor 1 Circuit Low Voltage
Frequently Asked Questions about P0112 Honda Code
1. What does the OBDII code P0112 for a Honda mean?
The code P0112 indicates that the Intake Air Temperature Sensor 1 Circuit is reporting a low voltage condition.
2. What are the common symptoms of a P0112 code on a Honda?
Common symptoms of a P0112 code include poor engine performance, decreased fuel efficiency, rough idling, and hesitation during acceleration.
3. What are the possible causes of a P0112 code in a Honda?
Possible causes of a P0112 code include a faulty intake air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).
4. How can I diagnose a P0112 code in my Honda?
Diagnosing a P0112 code typically involves using a multimeter to test the intake air temperature sensor's resistance, checking the sensor's wiring and connectors for damage, and verifying the ECM's functionality.
5. Can I continue driving my Honda with a P0112 code?
It is not recommended to drive your Honda with a P0112 code for an extended period, as it can lead to further engine problems and decreased fuel efficiency.
6. How can I repair a P0112 code in my Honda?
Repairing a P0112 code may involve replacing the intake air temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming the ECM.
7. Are there any DIY tips for fixing a P0112 code in a Honda?
DIY tips for fixing a P0112 code include checking the sensor's wiring for damage, ensuring proper sensor installation, and clearing the code with an OBDII scanner after making repairs.
8. Can a P0112 code be triggered by other underlying issues in a Honda?
Yes, a P0112 code can sometimes be triggered by other underlying issues such as a dirty air filter, vacuum leaks, or problems with the throttle body.
9. How long does it typically take to repair a P0112 code in a Honda?
The time it takes to repair a P0112 code in a Honda can vary depending on the exact cause of the issue and the extent of repairs needed, but it is usually a relatively quick fix.
10. Will resetting the ECM clear a P0112 code in a Honda?
Resetting the ECM may temporarily clear the P0112 code, but if the underlying issue causing the code is not addressed, it is likely to return.
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