P0112 Chevrolet Code - Intake Air Temperature Sensor Circuit Low Voltage
Quick Answer
The intake air temperature (IAT) sensor 1 is a variable resistor that measures the temperature of the air in the sensor bore. Common causes include Dirty air filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted. 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 Chevrolet indicates Intake Air Temperature Sensor Circuit Low Voltage.
- Common causes
- Common causes include Dirty air filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted.
- 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 Chevrolet Description
What are the Possible Causes of the DTC P0112 Chevrolet?
- Dirty air filter
- Faulty Intake Air Temperature (IAT) Sensor
- Intake Air Temperature Sensor harness is open or shorted
- Intake Air Temperature Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0112 Chevrolet?
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 Chevrolet 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.
Need more information about the P0112 Chevrolet code?
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Need Help with the Code?
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Information for Specific Chevrolet Models
- P0112 2014 Chevrolet Silverado — Intake Air Temperature Sensor Circuit Low Voltage
- P0112 2015 Chevrolet Silverado — Intake Air Temperature Sensor Circuit Low Voltage
- P0112 2016 Chevrolet Silverado — Intake Air Temperature Sensor Circuit Low Voltage
- P0112 2017 Chevrolet Silverado — Intake Air Temperature Sensor Circuit Low Voltage
- P0112 2018 Chevrolet Silverado — Intake Air Temperature Sensor Circuit Low Voltage
Frequently Asked Questions about P0112 Chevrolet Code
1. What does the OBDII code P0112 mean on a Chevrolet?
P0112 indicates that the intake air temperature (IAT) sensor is reporting a low voltage signal to the engine control module (ECM), suggesting that the sensor is reading an unusually low air temperature.
2. What are the common symptoms of code P0112 in a Chevrolet?
Symptoms may include poor fuel economy, rough idling, reduced engine performance, hard starting, and an illuminated check engine light.
3. What causes the P0112 code on a Chevrolet?
Common causes include a faulty IAT sensor, damaged wiring or connectors, a short circuit in the sensor circuit, or a malfunctioning engine control module.
4. Can I drive my Chevrolet with a P0112 code?
While it may be possible to drive with this code, it is not recommended. The engine may not perform efficiently, and prolonged driving can lead to further damage or increased emissions.
5. How do I fix the P0112 code on a Chevrolet?
Repairs may include replacing the IAT sensor, repairing or replacing damaged wiring or connectors, cleaning the sensor connection, or, in rare cases, replacing the ECM.
6. How do I know if the IAT sensor is faulty for code P0112?
You can test the IAT sensor using a multimeter to check its resistance. If the readings are out of the manufacturer’s specifications, the sensor is likely faulty.
7. Where is the IAT sensor located on a Chevrolet?
The IAT sensor is typically located in the intake manifold or air intake tube, near the air filter box.
8. How much does it cost to fix a P0112 code on a Chevrolet?
Repairs can range from $50 to $300, depending on whether you replace the IAT sensor yourself or need professional diagnostics and repairs.
9. Can a dirty air filter trigger the P0112 code on a Chevrolet?
While unlikely, a severely clogged air filter could potentially affect air intake readings. However, the primary cause is usually related to the IAT sensor or its circuit.
10. Do I need to clear the P0112 code after repairs on my Chevrolet?
Yes, after completing repairs, use an OBDII scanner to clear the code and verify that it does not return. This ensures the issue has been resolved.
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