P1115 Code - Intake Air Temperature Sensor 2 Circuit High
Quick Answer
The P1115 code indicates a problem with the intake air temperature sensor 2 circuit being too high. Common causes include Faulty intake air temperature sensor, Wiring or connector issues in the sensor circuit, Air intake leaks or restrictions. 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
- P1115 indicates Intake Air Temperature Sensor 2 Circuit High.
- Common causes
- Common causes include Faulty intake air temperature sensor, Wiring or connector issues in the sensor circuit, Air intake leaks or restrictions.
- 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 P1115 Description
The P1115 code indicates a problem with the intake air temperature sensor 2 circuit being too high. This sensor is responsible for measuring the temperature of the air entering the engine, which is crucial for the engine control unit to adjust air/fuel mixture and ignition timing. When this sensor detects a high voltage signal, it can lead to incorrect engine performance, reduced fuel efficiency, and increased emissions. If left unaddressed, this issue can potentially cause damage to the engine due to incorrect air/fuel ratios and timing.
Common Causes of P1115
- Faulty intake air temperature sensor
- Wiring or connector issues in the sensor circuit
- Air intake leaks or restrictions
- Engine coolant temperature sensor malfunction
- Engine control module (ECM) failure
Symptoms of P1115
- Check engine light illuminated on the dashboard
- Reduced fuel efficiency
- Rough idling or stalling
- Engine overheating
- Loss of power during acceleration
How to Fix P1115
- Diagnose the issue by using a scan tool to retrieve the trouble code and checking the intake air temperature sensor and wiring for any visible damage.
- Replace the faulty intake air temperature sensor if it is found to be defective.
- Inspect and repair any damaged wiring or connectors in the sensor circuit.
- Check for any air intake leaks or restrictions and address them accordingly.
- Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1115
The cost of repairing the intake air temperature sensor circuit high issue can vary depending on the root cause of the problem. On average, the parts for this repair can range from $50 to $150, while labor costs can range from $80 to $150 per hour. Therefore, the total repair cost can be anywhere from $150 to $500 or more. It's important to consult with a trusted mechanic or dealership to get an accurate estimate based on your specific vehicle make and model.
Tech Notes for P1115
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Code P1115 Information for Specific Makes
- P1115 Acura — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Audi — HO2S Sensor Heater Circuit Short To Ground Bank 1 Sensor 1
- P1115 Buick — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Cadillac — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Chevrolet — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Chrysler — General Temperature Rationality
- P1115 Dodge — General Temperature Rationality
- P1115 Ford — Intake Air Temperature Sensor 2 Circuit High
- P1115 GMC — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Honda — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Hyundai — Engine Coolant Temperature Sensor Short Circuit- Intermittent High Input
- P1115 Isuzu — ECT Sensor Circuit Intermittent Voltage High
- P1115 Jeep — General Temperature Rationality
- P1115 KIA — Engine Coolant Temperature Sensor Signal From ECU to TCU
- P1115 KIA — HO2S Circuit Low Voltage Bank 1 Sensor 1
- P1115 Lexus — Coolant Temperature Sensor Circuit For Heat Storage System
- P1115 Lincoln — Intake Air Temperature Sensor 2 Circuit High
- P1115 Mercury — Intake Air Temperature Sensor 2 Circuit High
- P1115 Mitsubishi — General Temperature Rationality
- P1115 Pontiac — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Saturn — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Scion — Coolant Temperature Sensor Circuit For Heat Storage System
- P1115 Subaru — Engine Torque Control Cut Signal Circuit High Input
- P1115 Suzuki — Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- P1115 Toyota — Coolant Temperature Sensor Circuit For Heat Storage System
- P1115 Volkswagen — HO2S Sensor Heater Circuit Short To Ground Bank 1 Sensor 1
Frequently Asked Questions about P1115 Code
1. What are common symptoms of OBDII code P1115 (Intake Air Temperature Sensor 2 Circuit High)?
The common symptoms of P1115 include poor fuel economy, rough idling, engine misfires, and a decrease in overall engine performance.
2. What can cause OBDII code P1115 to trigger?
Code P1115 is typically triggered by a faulty intake air temperature sensor, a damaged sensor wiring harness, or a poor electrical connection to the sensor.
3. How can I diagnose the cause of OBDII code P1115?
To diagnose P1115, you can use a multimeter to test the intake air temperature sensor's resistance, check the sensor wiring for damage, and inspect the sensor connector for corrosion or loose pins.
4. Can a dirty air filter cause OBDII code P1115 to set?
Yes, a dirty air filter can affect the intake air temperature sensor readings, potentially leading to code P1115. It's important to check and replace the air filter if necessary.
5. Is it safe to continue driving with OBDII code P1115 illuminated?
While the vehicle may still be operable with code P1115, it's not recommended to continue driving for an extended period. Ignoring the issue can lead to further damage and decreased engine efficiency.
6. How do I repair OBDII code P1115?
Repairing P1115 typically involves replacing the faulty intake air temperature sensor, repairing damaged wiring, or addressing any loose connections in the sensor circuit.
7. Can I reset OBDII code P1115 without fixing the underlying issue?
Resetting the code without addressing the underlying problem will only temporarily turn off the check engine light. The issue causing P1115 will likely trigger the code again if not resolved.
8. Is it possible to prevent OBDII code P1115 from occurring?
Regular maintenance, such as replacing the air filter at recommended intervals and keeping the intake system clean, can help prevent issues that may trigger code P1115.
9. How long does it typically take to repair OBDII code P1115?
The repair time for P1115 can vary depending on the exact cause of the issue. In most cases, diagnosing and repairing the problem can take anywhere from 1 to 3 hours.
10. Can a mechanic help with diagnosing and repairing OBDII code P1115?
Yes, a qualified mechanic can assist in diagnosing and repairing OBDII code P1115. They have the tools and expertise to efficiently identify the issue and perform the necessary repairs.
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