Engine-Codes - Generic - P1114

P1114 - Intake Air Temperature Sensor 2 Circuit Low

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1114 Possible Causes

  • Faulty Intake Air Temperature Sensor 2
  • Intake Air Temperature Sensor 2 harness is open or shorted
  • Intake Air Temperature Sensor 2 circuit poor electrical connection
  • Damaged Powertrain Control Module (PCM)

How is the P1114 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1114 code

Labor: 1.0

The cost to diagnose the P1114 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1114 Meaning

The IAT sensor is a thermistor device in which resistance changes with temperature. The electrical resistance of a thermistor decreases as the temperature increases, and the resistance increases as the temperature decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signals to the Powertrain Control Module (PCM) corresponding to temperature.
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow. Voltage that is dropped across a fixed resistor in a series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The IAT sensor provides air temperature information to the PCM. The PCM uses the air temperature information as a correction factor in the calculation of fuel, spark, and air flow.
The IAT sensor provides a quicker temperature change response time than the ECT or CHT sensor.
Currently there are 2 types of IAT sensors used, a stand alone, non-integrated type and an integrated type. Both types function the same, however the integrated type is incorporated into the mass air flow (MAF) sensor instead of being a stand-alone sensor.

More Information

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Information for specific makes

  • P1114 ACURA Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 AUDI HO2S Sensor Heater Resistance Too High Bank 1 Sensor 2
  • P1114 BUICK Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 CADILLAC Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 CHEVROLET Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 DODGE MAP Sensor Circuit Intermitten Hi Voltage
  • P1114 FORD Intake Air Temperature Sensor 2 Circuit Low
  • P1114 GMC Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 HONDA Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 HYUNDAI Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 ISUZU Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 KIA Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 LINCOLN Intake Air Temperature Sensor 2 Circuit Low
  • P1114 MERCURY Intake Air Temperature Sensor 2 Circuit Low
  • P1114 PONTIAC Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 SATURN Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 SUZUKI Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
  • P1114 VOLKSWAGEN HO2S Sensor Heater Resistance Too High Bank 1 Sensor 2

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