P0113 2018 GMC Sierra Code - Intake Air Temperature Circuit High Input
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
- P0113 2018 GMC Sierra indicates Intake Air Temperature Circuit High Input.
- 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 P0113 2018 GMC Sierra Description
What are the Possible Causes of the DTC P0113 2018 GMC Sierra?
- 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 P0113 2018 GMC Sierra?
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 P0113 2018 GMC Sierra 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 P0113 2018 GMC Sierra Code
1. What does the OBDII code P0113 mean on a 2018 GMC Sierra?
P0113 indicates that the Powertrain Control Module (PCM) has detected a high voltage signal from the Intake Air Temperature (IAT) sensor, which typically means the sensor is reading a very low temperature.
2. What are the common symptoms of code P0113 in a 2018 GMC Sierra?
Common symptoms include poor engine performance, reduced fuel efficiency, difficulty starting the engine, and possibly an illuminated Check Engine Light.
3. What causes the P0113 code to appear on a 2018 GMC Sierra?
Potential causes include a faulty IAT sensor, damaged or disconnected wiring, a dirty or clogged air filter, or a PCM issue.
4. How does the Intake Air Temperature (IAT) sensor work in a GMC Sierra?
The IAT sensor measures the temperature of the air entering the engine and sends this data to the PCM, which uses it to adjust air-fuel ratios for optimal performance.
5. Can I drive my 2018 GMC Sierra with the P0113 code?
Driving with the P0113 code is possible but not recommended, as it can lead to reduced performance, poor fuel economy, and potential long-term engine damage.
6. How do I diagnose the P0113 code on a 2018 GMC Sierra?
Diagnosis typically involves inspecting the IAT sensor and its wiring for damage, checking the air filter, and using a multimeter to test the sensor's voltage output.
7. How do I fix the P0113 code on my 2018 GMC Sierra?
Common fixes include replacing the IAT sensor, repairing damaged wiring, cleaning or replacing the air filter, or in rare cases, reprogramming the PCM.
8. Where is the IAT sensor located on a 2018 GMC Sierra?
The IAT sensor is usually located in the intake manifold or integrated into the mass air flow (MAF) sensor near the air filter housing.
9. How much does it cost to fix the P0113 code on a 2018 GMC Sierra?
Repair costs vary but typically range from $50 to $200, depending on whether the IAT sensor needs replacement or if additional repairs are required.
10. What tools are needed to troubleshoot the P0113 code on a 2018 GMC Sierra?
Basic tools such as a code scanner, multimeter, and possibly a repair manual for reference are commonly used to diagnose and fix this issue.
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