P1114 CHEVROLET – Intermittent Low Voltage in Engine Coolant Temperature Sensor Circuit

P1114 CHEVROLET Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Poor electrical connection in Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1114 CHEVROLET Code?

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 pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P1114 CHEVROLET Meaning

The Engine Coolant Temperature (ECT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The ECT sensor is mounted in the left bank cylinder head near the front of the engine. The ECT sensor has a signal circuit and a ground circuit. The PCM applies a voltage (approximately 5.0 volts) to the sensor signal circuit. The PCM monitors changes in this voltage caused by changes in the sensor’s resistance to determine the engine coolant temperature.

When the engine coolant is cold, the sensor resistance (thermistor) is high and the PCM signal voltage is only slightly lowered across the sensor to ground. The PCM detects a high signal voltage (low temperature). When the engine coolant is hot, the sensor resistance is low and the signal voltage is lowered further. This causes the PCM to detect a low signal voltage (high temperature).

P1114 GMC – Intermittent Low Voltage in Engine Coolant Temperature Sensor Circuit

P1114 GMC Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Open or short circuit in Engine Coolant Temperature (ECT) sensor wiring harness
  • Poor electrical connection in Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1114 GMC Code?

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

Possible Symptoms

Illuminated check engine light (or service engine soon warning light)

P1114 GMC Meaning

The Engine Coolant Temperature (ECT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The ECT sensor is mounted in the left bank cylinder head near the front of the engine. The ECT sensor has a signal circuit and a ground circuit. The PCM applies a voltage (approximately 5.0 volts) to the sensor signal circuit. The PCM monitors changes in this voltage caused by changes in sensor resistance to determine engine coolant temperature.

When the engine coolant is cold, the sensor resistance (thermistor) is high and the PCM signal voltage is only slightly lowered across the sensor to ground. The PCM detects a high signal voltage (low temperature). When the engine coolant is hot, the sensor resistance is low and the signal voltage is lowered further. This causes the PCM to detect a low signal voltage (high temperature).

P1114 HONDA – Intermittent Low Voltage in Engine Coolant Temperature Sensor Circuit

P1114 HONDA Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Poor electrical connection in Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1114 HONDA Code?

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 pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P1114 HONDA Meaning

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as an engine coolant temperature input. The sensor uses a thermistor sensitive to temperature change. The electrical resistance of the thermistor decreases as temperature increases.

P1114 HYUNDAI – Intermittent Low Voltage in Engine Coolant Temperature Sensor Circuit

P1114 HYUNDAI Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Poor electrical connection in Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1114 HYUNDAI Code?

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 pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P1114 HYUNDAI Meaning

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as an engine coolant temperature input. The sensor uses a thermistor sensitive to temperature change. The electrical resistance of the thermistor decreases as temperature increases.

P1114 ISUZU – Intermittent Low Voltage in Engine Coolant Temperature Sensor Circuit

P1114 ISUZU Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Poor electrical connection in the Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1114 ISUZU Code?

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 pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P1114 ISUZU Meaning

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as an engine coolant temperature input. The sensor uses a thermistor sensitive to temperature change. The electrical resistance of the thermistor decreases as the temperature increases.

P1114 KIA – Intermittent Low Voltage in Engine Coolant Temperature Sensor Circuit

P1114 KIA Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Poor electrical connection in Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1114 KIA Code?

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 pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P1114 KIA Meaning

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as an engine coolant temperature input. The sensor uses a thermistor sensitive to temperature change. The electrical resistance of the thermistor decreases as temperature increases.

P1114 LINCOLN – Intake Air Temperature Sensor 2 Circuit Low

P1114 LINCOLN 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 to Fix Code P1114 LINCOLN?

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

What Does It Mean?

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with mass air flow sensor cleaner. Reset the code and drive the vehicle. If the code returns, the mass air flow sensor may need to be replaced. Monitor the IAT on a scan tool. Look for sudden changes in the reading when the harness is shaken or the sensor is tapped.

Possible Symptoms

Check Engine Light On (or Service Engine Soon Warning Light)

P1114 LINCOLN Meaning

The IAT sensor is a thermistor device in which resistance changes with temperature. The electrical resistance of a thermistor decreases as temperature increases and resistance increases as temperature decreases. The variable resistance affects the voltage drop across the sensor terminals and provides electrical signals to the Powertrain Control Module (PCM) corresponding to the temperature.

Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so that the change in the passive sensor’s resistance causes a change in the total current flow. The voltage that drops across a fixed resistor in series with the sensor resistance determines the voltage signal to the PCM. This voltage signal equals the reference voltage minus the voltage drop across the fixed resistor.

The IAT sensor provides air temperature information to the PCM. The PCM uses air temperature information as a correction factor in the calculation of fuel, spark, and air flow.

The IAT sensor provides faster response time to temperature change than the ECT or CHT sensor.
Currently, there are 2 types of IAT sensors used, a standalone, non-integrated type and an integrated type. Both types function the same way, but the integrated type is integrated into the Mass Air Flow (MAF) sensor instead of being a standalone sensor.

P1114 MERCURY – Low Intake Air Temperature Sensor 2 Circuit

P1114 MERCURY Possible Causes

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

How to Fix Code P1114 MERCURY?

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

What Does It Mean?

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with mass air flow sensor cleaner. Reset the code and drive the vehicle. If the code returns, it may be necessary to replace the mass air flow sensor. Monitor the IAT on a scan tool. Look for sudden changes in the reading when the harness is shaken or the sensor is tapped.

Possible Symptoms

Check Engine Light on (or Service Engine Soon Warning Light)

P1114 MERCURY 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 variable resistance affects the voltage drop across the sensor terminals and provides electrical signals to the Powertrain Control Module (PCM) corresponding to the temperature.
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so that the change in the passive sensor’s resistance causes a change in the total current flow. The voltage that drops across a fixed resistor in series with the sensor resistance determines the voltage signal to 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 faster response time to temperature change than the ECT or CHT sensor.

Currently, there are 2 types of IAT sensors used, a standalone, non-integrated type and an integrated type. Both types function in the same way, but the integrated type is incorporated into the Mass Air Flow (MAF) sensor instead of being a standalone sensor.

P1114 PONTIAC – Intermittent low voltage in engine coolant temperature sensor circuit

P1114 PONTIAC Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Poor electrical connection in Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1114 PONTIAC Code?

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 pins.

Possible Symptoms

Engine light on (or engine warning light soon to come on)

P1114 PONTIAC Meaning

The Engine Coolant Temperature (ECT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The ECT sensor is mounted in the left bank cylinder head near the front of the engine. The ECT sensor has a signal circuit and a ground circuit. The PCM applies a voltage (approximately 5.0 volts) to the sensor signal circuit. The PCM monitors changes in this voltage caused by changes in the sensor’s resistance to determine the engine coolant temperature.
When the engine coolant is cold, the sensor resistance (thermistor) is high and the PCM signal voltage is only slightly lowered across the sensor to ground. The PCM detects a high signal voltage (low temperature). When the engine coolant is hot, the sensor resistance is low and the signal voltage is lowered further. This causes the PCM to detect a low signal voltage (high temperature).

P1114 SATURN – Intermittent low voltage in the engine coolant temperature sensor circuit

P1114 SATURN Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor
  • Low engine coolant level
  • Open or short circuit in Engine Coolant Temperature (ECT) sensor wiring harness
  • Poor electrical circuit connection of Engine Coolant Temperature (ECT) sensor
  • Faulty engine coolant thermostat

How to Fix P1114 SATURN Code?

Begin by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated check engine light (or service engine soon warning light)

P1114 SATURN Meaning

The Engine Coolant Temperature (ECT) sensor contains a semiconductor device that changes resistance based on temperature (a thermistor). The ECT sensor is mounted in the left bank cylinder head near the front of the engine. The ECT sensor has a signal circuit and a ground circuit. The PCM applies a voltage (approximately 5.0 volts) to the sensor signal circuit. The PCM monitors changes in this voltage caused by changes in the sensor’s resistance to determine the engine coolant temperature.

When the engine coolant is cold, the sensor resistance (thermistor) is high and the PCM signal voltage is only slightly lowered across the sensor to ground. The PCM detects a high signal voltage (low temperature). When the engine coolant is hot, the sensor resistance is low and the signal voltage is lowered further. This causes the PCM to detect a low signal voltage (high temperature).