P1115 PONTIAC – Intermittent High Voltage in Engine Coolant Temperature Sensor Circuit

P1115 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 the Engine Coolant Temperature (ECT) sensor circuit
  • Faulty engine coolant thermostat

How to Fix P1115 PONTIAC 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

Engine light on (or engine service warning light soon)

P1115 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).

P1115 SATURN – Intermittent High Voltage in Engine Coolant Temperature Sensor Circuit

P1115 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 P1115 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)

P1115 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 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).

P1115 SCION – Coolant Temperature Sensor Circuit for Heat Storage System

P1115 SCION Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor for HST
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor for HST harness is open or short-circuited
  • Engine Coolant Temperature (ECT) sensor for HST electrical circuit poor connection
  • Faulty engine coolant thermostat

How to Fix P1115 SCION Code?

Start by checking the “Possible Causes” listed above. Visually inspect the corresponding cable 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)

P1115 SCION Meaning

The Coolant Temperature Sensor Circuit for Heat Storage System is the generic description for P1115 Scion code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have further information about the OBDII P1115 Scion code.

P1115 SUZUKI – Intermittent High Voltage in Engine Coolant Temperature Sensor Circuit

P1115 SUZUKI 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 P1115 SUZUKI 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)

P1115 SUZUKI 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.

P1115 TOYOTA – Coolant Temperature Sensor Circuit for Heat Storage System

P1115 TOYOTA Possible Causes

  • Faulty Engine Coolant Temperature (ECT) sensor for HST
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor for HST harness is open or short-circuited
  • Engine Coolant Temperature (ECT) sensor for HST electrical circuit poor connection
  • Faulty engine coolant thermostat

How to Fix P1115 TOYOTA Code?

Start by checking the “Possible Causes” listed above. Visually inspect the corresponding cable 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 service required)

P1115 TOYOTA Meaning

The Coolant Temperature Sensor Circuit for Heat Storage System is the generic description for Toyota P1115 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the Toyota P1115 OBDII code.

P1115 VOLKSWAGEN – Heated O2 Sensor Heater Circuit, Bank 1 Sensor 1

P1115 VOLKSWAGEN Possible Causes

  • Faulty HO2 sensor, Bank 1 Sensor 1
  • HO2 Sensor Bank 1 Sensor 1 wiring open or short circuit
  • HO2 Sensor, Bank 1, Sensor 1 circuit, poor electrical connection

How to Fix P1115 VOLKSWAGEN 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.

Symptoms

Possible

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

P1115 VOLKSWAGEN Meaning

HO2S Heater Circuit Short to Ground, Bank 1 Sensor 1 is the generic description for Volkswagen P1115 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have further information about Volkswagen P1115 OBDII code.

P1116 – Engine Coolant Temperature Sensor Out of Self-Test Range

P1116 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 Code P1116?

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

P1116 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 temperature increases and resistance increases as 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 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 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 lockable and pluggable ECT sensors. The ECT sensor is located in an engine coolant passage.

P1116 ACURA – Engine Coolant Temperature Sensor Performance Problem

P1116 ACURA 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 P1116 ACURA 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)

P1116 ACURA 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.

P1116 AUDI – Open HO2S Heater Circuit, Bank 1 Sensor 1

P1116 AUDI Possible Causes

  • Faulty HO2 sensor, bank 1 sensor 1
  • HO2 Sensor Bank 1 Sensor 1 harness is open or shorted
  • HO2 Sensor, bank 1, sensor 1 circuit, poor electrical connection

How to Fix P1116 AUDI 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)

P1116 AUDI Meaning

HO2S Heater Circuit Open, Bank 1 Sensor 1 is the generic description for Audi P1116 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have further information about the Audi P1116 OBDII code.

P1116 BMW – Mass or Volumetric Air Flow Circuit Range / Performance Problem, Row 2

P1116 BMW Possible Causes

  • Faulty mass air flow sensor
  • Mass air flow sensor harness is open or shorted
  • Poor electrical connection in mass air flow sensor circuit

How to Fix BMW P1116 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)

P1116 BMW Meaning

Mass or Volume Air Flow Circuit Range/Performance Problem Bank 2 is the generic description for BMW P1116 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the OBDII P1116 BMW code.