P1111 2015 Chevrolet Silverado Code - Intake Air Temperature Sensor Circuit Intermittent High Voltage
Quick Answer
The P1111 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado specifically refers to the Intake Air Temperature Sensor Circuit Intermittent High Voltage. Common causes include Faulty intake air temperature sensor, Damaged or corroded wiring/connectors in the sensor circuit, ECM software malfunction. 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
- P1111 2015 Chevrolet Silverado indicates Intake Air Temperature Sensor Circuit Intermittent High Voltage.
- Common causes
- Common causes include Faulty intake air temperature sensor, Damaged or corroded wiring/connectors in the sensor circuit, ECM software malfunction.
- 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.
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Code P1111 2015 Chevrolet Silverado Description
The P1111 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado specifically refers to the Intake Air Temperature Sensor Circuit Intermittent High Voltage. This code indicates that there is an issue with the intake air temperature sensor circuit, where the voltage is intermittently higher than expected. The intake air temperature sensor is a crucial component that measures the temperature of the incoming air into the engine. This information is used by the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.
Common Causes of P1111 2015 Chevrolet Silverado
- Faulty intake air temperature sensor
- Damaged or corroded wiring/connectors in the sensor circuit
- ECM software malfunction
- Intake air leaks near the sensor
- Engine overheating
Symptoms of P1111 2015 Chevrolet Silverado
- Decreased fuel efficiency
- Engine misfires
- Rough idling
- Hesitation during acceleration
- Check Engine Light illuminated
How to Fix P1111 2015 Chevrolet Silverado
- Begin by diagnosing the issue using a scan tool to confirm the P1111 code and perform a visual inspection of the intake air temperature sensor and its wiring.
- Test the intake air temperature sensor using a multimeter to check for proper resistance values and voltage readings.
- Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
- Clear the DTC and reset the ECM to see if the code returns. If the issue persists, consider replacing the intake air temperature sensor.
- After replacing the sensor, retest the system to ensure that the P1111 code does not return.
Cost to Fix P1111 2015 Chevrolet Silverado
The typical repair costs for addressing the P1111 code on a 2015 Chevrolet Silverado can vary depending on the exact cause of the issue. In general, the cost of replacing an intake air temperature sensor can range from $50 to $150, depending on the brand and quality of the sensor. Labor costs at an auto repair shop can range from $80 to $150 per hour, and the total repair time may vary depending on the complexity of the job. Overall, the total cost for addressing this issue could range from $150 to $400, including parts and labor. It is recommended to check with local auto repair shops for more precise estimates based on your specific vehicle and location.
Tech Notes for P1111 2015 Chevrolet Silverado
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