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P1115

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

P1115 is described as “Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input” in the Generic OBD2 reference. Other reference families are shown below; select the scope relevant to your vehicle.

Manufacturer reference family

BMW: P1115

en

Coolant Temperature Sensor Plausibility

Reference namespace
bmw
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: BMW.

10 profiles assigned this reference family
Manufacturer reference family

Chrysler: P1115

en

General Temperature Rationality; Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

tr

Genel Sıcaklık Akılcılığı; Motor Soğutucu Sıcaklığı (ECT) Sensörü Devresi Aralıklı Yüksek Gerilim / IAT - B Devresi Yüksek Giriş

Reference namespace
chrysler
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Chrysler.

5 profiles assigned this reference family
Manufacturer reference family

Ford: P1115

en

IAT - B Circuit High Input; Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

Reference namespace
ford
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Ford.

28 profiles assigned this reference family

4 more related profiles are listed in the vehicle directory.

Manufacturer reference family

GM: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage - Read Our Article onAutomotive Circuit Testing For Help With This GM Check Engine Light Code; Engine coolant temperature (ECT) sensor 2, ECM controlled cooling system - circuit malfunction

Reference namespace
gm
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Genesis / Hyundai / Kia: P1115

en

Coolant Temperature Input - Abnormal

Reference namespace
hyundai-kia
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Kia, Genesis, Hyundai.

401 profiles assigned this reference family

377 more related profiles are listed in the vehicle directory.

Manufacturer reference family

Lambo: P1115

en

HO2S - 11 heater circuit low voltage

Reference namespace
lambo
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Lincoln: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

Reference namespace
lincoln
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Mercury: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

Reference namespace
mercury
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Dodge / Mitsubishi: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

Reference namespace
mitsubishi
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Mitsubishi, Dodge.

31 profiles assigned this reference family

7 more related profiles are listed in the vehicle directory.

Manufacturer reference family

Infiniti / Nissan: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

Reference namespace
nissan
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Nissan, Infiniti.

62 profiles assigned this reference family

38 more related profiles are listed in the vehicle directory.

Generic OBD2

Generic OBD2: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

ru

Высокое напряжение в цепи датчика температуры охлаждающей жидкости (ECT)

Reference namespace
obd2
Source revision
legacy-2.2.20

Generic OBD2 definition; confirm the protocol and vehicle-specific service information.

Manufacturer reference family

Oldsmobile: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

Reference namespace
oldsmobile
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Porsche: P1115

en

Oxygen Sensor Heating

Reference namespace
porsche
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Porsche.

1 profiles assigned this reference family
Manufacturer reference family

Belgee / Geely / Proton: P1115

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

Reference namespace
proton
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Belgee, Geely, Proton.

5 profiles assigned this reference family
Manufacturer reference family

Saab: P1115

en

Front HO2S Bank 1, Control Module Input, Current in Pre-Heating Circuit Too Low

Reference namespace
saab
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Chevrolet / Citroen / General Motors / Opel / Peugeot: P1115

en

Engine coolant temperature (ECT) sensor circuit Intermittent high voltage / IAT - B sensor circuit high input

Reference namespace
stellantis-psa
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Chevrolet, Opel, Citroen, General Motors, Peugeot.

35 profiles assigned this reference family

11 more related profiles are listed in the vehicle directory.

Manufacturer reference family

Subaru: P1115

en

Engine Torque Control Cut Signal Circuit High Input

Reference namespace
subaru
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Subaru.

5 profiles assigned this reference family
Manufacturer reference family

Audi / Jetta / MAN / Seat / Skoda / Volkswagen: P1115

de

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage; O2 Sensor Heater Circ.,Bank1 - Sensor1 Short to Ground

en

Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage; O2 Sensor Heater Circ.,Bank1 - Sensor1 Short to Ground

Reference namespace
vag
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Skoda, Volkswagen, Audi, Seat, MAN, Jetta.

56 profiles assigned this reference family

32 more related profiles are listed in the vehicle directory.

Manufacturer reference family

Polestar / Volvo: P1115

en

O2 Sensor Heater Circ.,Bank1 - Sensor1 Short to Ground

Reference namespace
volvo
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Polestar, Volvo.

12 profiles assigned this reference family

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope