P0112 Acura 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 Acura 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 Acura Description
What are the Possible Causes of the DTC P0112 Acura?
- 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 Acura?
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 Acura 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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Frequently Asked Questions about P0112 Acura Code
What does the OBDII code P0112 mean on an Acura?
P0112 indicates that the Intake Air Temperature (IAT) Sensor 1 is reporting a voltage reading that is too low, which could result in inaccurate air temperature readings for the engine control unit (ECU).
What are the symptoms of code P0112 on an Acura?
Common symptoms include poor fuel efficiency, rough idling, difficulty starting, reduced engine performance, and the check engine light illuminating.
What causes the P0112 code on an Acura?
Potential causes include a faulty IAT sensor, damaged or corroded wiring, a short circuit in the sensor circuit, or issues with the ECU.
Can I drive my Acura with the P0112 code active?
While it may be possible to drive with this code, it is not recommended as it can lead to reduced fuel efficiency, performance issues, or even engine damage over time.
How do I diagnose the P0112 code on an Acura?
Start by checking the IAT sensor and its wiring for damage or corrosion. Use a multimeter to test the sensor's resistance and verify that the voltage from the ECU is within the expected range.
How do I fix the P0112 code on an Acura?
Repairs may include replacing the IAT sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the ECU if necessary.
How much does it cost to fix the P0112 code on an Acura?
Replacing the IAT sensor typically costs $50-$150, while wiring repairs or ECU-related fixes may cost more depending on the extent of the issue.
Can a dirty air filter cause the P0112 code on an Acura?
While uncommon, a severely clogged air filter may indirectly affect intake air temperature readings, but the code is usually caused by sensor or wiring issues.
Will clearing the P0112 code fix the problem on my Acura?
Clearing the code will temporarily remove the check engine light, but it won’t fix the underlying issue. The code will likely return unless the root cause is addressed.
Is the IAT sensor easy to replace on an Acura?
In most Acura models, the IAT sensor is relatively easy to access and replace, often located near or on the air intake system. However, always consult your vehicle’s service manual for exact instructions.
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