P112C Buick Code - Intake Air Temperature Sensor 3 Circuit Low Voltage
Quick Answer
The Intake Air Temperature (IAT) sensor contains a semiconductor device which changes the resistance based on the temperature (a thermistor). Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature sensor 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
- P112C Buick indicates Intake Air Temperature Sensor 3 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature sensor 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 P112C Buick Description
What are the Possible Causes of the DTC P112C Buick?
- Faulty Intake Air Temperature sensor
- Intake Air Temperature sensor harness is open or shorted
- Intake Air Temperature sensor circuit poor electrical connection
How to Fix the DTC P112C Buick?
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 P112C Buick 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 P112C Buick Code
1. What are the common symptoms of OBDII code P112C related to the Intake Air Temperature Sensor 3 Circuit Low Voltage on a Buick?
- Common symptoms may include poor engine performance, reduced fuel efficiency, and possibly an illuminated check engine light.
2. What can cause the Intake Air Temperature Sensor 3 Circuit Low Voltage code P112C on a Buick?
- The code P112C can be triggered by a faulty intake air temperature sensor, damaged wiring or connectors, or issues with the sensor circuit.
3. How can I diagnose the Intake Air Temperature Sensor 3 Circuit Low Voltage issue on my Buick?
- Diagnosing the problem involves checking the intake air temperature sensor for proper operation, inspecting the sensor wiring and connections, and using a scan tool to retrieve and analyze the error code.
4. Can a dirty air filter cause the P112C code on a Buick?
- A dirty air filter is unlikely to directly cause the P112C code, but it can indirectly affect the intake air temperature readings and contribute to sensor issues.
5. What are some repair tips for fixing the Intake Air Temperature Sensor 3 Circuit Low Voltage code on a Buick?
- Repair tips may include replacing the faulty intake air temperature sensor, repairing damaged wiring or connectors, and clearing the error code with a scan tool after completing the repairs.
6. Is it safe to continue driving with the P112C code related to the Intake Air Temperature Sensor 3 Circuit Low Voltage on a Buick?
- It is generally not recommended to drive with unresolved engine sensor issues, as they can lead to further damage and decreased performance over time.
7. Can I reset the P112C code on my Buick without fixing the underlying issue?
- Resetting the code without addressing the root cause will likely result in the check engine light returning once the issue is detected again by the vehicle's system.
8. How much does it typically cost to repair the Intake Air Temperature Sensor 3 Circuit Low Voltage problem on a Buick?
- The cost of repairing the issue can vary depending on the exact cause and the labor rates of the repair shop, but it may involve parts and labor expenses.
9. Will the P112C code affect my Buick's emissions or pass an emissions test?
- The P112C code may cause your Buick to fail an emissions test, as it indicates a problem with the intake air temperature sensor, which can impact emissions control and engine performance.
10. Can I replace the Intake Air Temperature Sensor on my Buick myself?
- If you have the necessary tools and experience working on cars, you may be able to replace the intake air temperature sensor yourself. However, it's recommended to consult a professional if you're unsure about the process.
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