P1117 BUICK – Engine Coolant Temperature Signal Out of Low Range

P1117 BUICK Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • 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 P1117 BUICK Code?

Start by checking the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Engine light on (or service engine soon warning light)

P1117 BUICK 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 Powertrain Control Module (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).

P1117 CADILLAC – Engine Coolant Temperature Signal Out of Low Range

P1117 CADILLAC Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • 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 P1117 CADILLAC 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 On (or Service Engine Soon Warning Light)

P1117 CADILLAC 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 Powertrain Control Module (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).

P1117 CHEVROLET – Engine Coolant Temperature Sensor Circuit Low Input

P1117 CHEVROLET Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • 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 P1117 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

Illuminated engine light (or service engine soon warning light)

P1117 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 Powertrain Control Module (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).

P1117 FORD – Intermittent Engine Coolant Temperature Sensor

P1117 FORD Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • 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
  • Damaged Powertrain Control Module (PCM)

How to Fix P1117 FORD 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 On (or Service Engine Soon Warning Light)
Engine Overheating

P1117 FORD Meaning

The Engine Coolant Temperature (ECT) sensor is a thermistor device in which resistance changes with temperature. The electrical resistance of a thermistor decreases as the temperature increases, and resistance increases as the temperature decreases. The varying resistance changes 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 sensor’s resistance causes a variation in the total current flow. The voltage that drops across a fixed resistor (pull-up resistor) in series with the sensor’s resistance determines the voltage signal to the PCM. This voltage signal equals the reference voltage minus the voltage drop across the fixed resistor.
The ECT measures the engine coolant temperature. The PCM uses the ECT input for fuel control and for cooling fan control. There are 3 types of ECT sensors: threaded, push-in, and twist-lock. The ECT sensor is located in an engine coolant passage.

P1117 GMC – Engine Coolant Temperature Sensor Circuit Low Input

P1117 GMC Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • 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 P1117 GMC 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 engine service warning light soon)

P1117 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 Powertrain Control Module (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).

P1117 KIA – HO2S Low Voltage Circuit, Bank 1 Sensor 2

P1117 KIA Possible Causes

Faulty HO2S Sensor, Bank 1 Sensor 2
HO2S Sensor Bank 1 Sensor 2 harness is open or shorted
HO2S Sensor, Bank 1 Sensor 2, poor electrical circuit connection

How to Fix P1117 KIA 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

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

P1117 KIA Meaning

HO2S Circuit Low Voltage Bank 1 Sensor 2 is the generic description for P1117 Kia code, but the manufacturer may have a different description for your specific vehicle model and year. Currently, we don’t have additional information about P1117 Kia OBDII code.

P1117 LAND-ROVER – Thermostat Monitoring Sensor Short to Ground

P1117 LAND-ROVER Possible Causes

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

How to Fix P1117 LAND-ROVER 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 service engine soon warning light)
Engine overheating

P1117 LAND-ROVER Meaning

Thermostat monitor sensor short to ground is the generic description for Land-rover P1117 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have further information about the Land-rover P1117 OBDII code.

P1117 LEXUS – Coolant temperature sensor circuit for coolant heat storage system

P1117 LEXUS Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor for HST
  • Engine Coolant Temperature (ECT) sensor for HST circuit open or shorted
  • Engine Coolant Temperature (ECT) sensor for HST circuit poor electrical connection
  • Faulty engine coolant thermostat

How to Fix P1117 LEXUS 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 service engine soon warning light)

P1117 LEXUS Meaning

The Coolant Temperature Sensor Circuit Bank for Coolant Heat Storage System is the generic description for Lexus P1117 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have further information about Lexus OBDII P1117 code.

P1117 LINCOLN – Intermittent Engine Coolant Temperature Sensor

P1117 LINCOLN Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Engine Coolant Temperature (ECT) sensor circuit poor electrical connection
  • Faulty engine coolant thermostat
  • Damaged Powertrain Control Module (PCM)

How to Fix P1117 LINCOLN 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 service engine soon warning light)
Engine overheating

P1117 LINCOLN Meaning

The Engine Coolant Temperature (ECT) sensor is a thermistor device in which resistance changes with temperature. The electrical resistance of a thermistor decreases as the temperature increases, and resistance increases as the temperature decreases. The variable resistance changes 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 (pull-up 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 ECT measures the engine coolant temperature. The PCM uses the ECT input for fuel control and for cooling fan control. There are 3 types of ECT sensors; threaded, push-in, and twist-lock. The ECT sensor is located in an engine coolant passage.

P1117 MAZDA – Intermittent Engine Coolant Temperature Sensor

P1117 MAZDA Possible Causes

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • 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 P1117 MAZDA 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)

P1117 MAZDA 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.