PowertrainP0115

Caution

Severity: Caution - get it checked when you can

Engine Coolant Temperature Circuit

42 brands affected · Generic SAE J2012 description.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

Safety: This code relates to engine cooling or temperature. Overheating can damage the engine.

1What it means in plain English

This code is in the fuel, air and oxygen sensor range, which also includes coolant temperature faults.

2Common causes

Dirty or faulty mass air flow sensor
Vacuum or intake air leak
Weak fuel pump or clogged fuel filter
Faulty fuel injector
Faulty oxygen sensor
Wiring or connector fault

3Can I drive?

Caution · drive with care

Watch the temperature gauge. Stop safely and let the engine cool if the gauge climbs, steam appears, or a red warning light comes on.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 42

Brand	Code	Description	System
Ashok Leyland CV	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
BAIC Motor	P0115	Water temperature Sensor Signal Fault Brand	Powertrain
Mercedes-Benz	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
BMW	P0115	DME: Signal, coolant temperature Brand	Powertrain
BYD	P0115	ECT sensor Brand	Powertrain
Chery	P0115	ECT sensor Brand	Powertrain
Chrysler	P0115	Engine Coolant Temperature (ECT) sensor performance Brand	Powertrain
Daewoo	P0115	ECT sensor low voltage Brand	Powertrain
Daihatsu	P0115	Water temperature sensor open circuit Brand	Powertrain
DFFS	P0115	Coolant temperature sensor fault Brand	Powertrain
DFFX	P0115	ECT sensor Brand	Powertrain
DFXK	P0115	Engine Coolant Temperature Sensor 1 Circuit Brand	Powertrain
EOBD	P0115	Sirkuit sensor suhu pendingin mesin 1 Brand	Powertrain
Ford	P0115	Engine temperature Brand	Powertrain
Geely	P0115	ECT sensor Brand	Powertrain
GM	P0115	Engine Coolant Temperature Sensor 1 Circuit Brand	Powertrain
Great Wall	P0115	ECT sensor Brand	Powertrain
Hafei	P0115	ECT sensor Brand	Powertrain
Holden	P0115	Engine Coolant Temperature (ECT) Sensor Circuit Brand	Powertrain
Honda	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Hyundai	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Isuzu	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Land Rover	P0115	Engine coolant temperature circuit malfunction Brand	Powertrain
Mahindra	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Maserati	P0115	Engine Coolant Temperature Sensor 1 Circuit Brand	Powertrain
Mazda	P0115	Engine temperature Brand	Powertrain
Mitsubishi	P0115	ECT sensor Brand	Powertrain
Nissan	P0115	ECT sensor circuit Brand	Powertrain
Opel	P0115	Engine Coolant Temperature Sensor 1 Circuit Brand	Powertrain
Perodua	P0115	Water temperature sensor open circuit Brand	Powertrain
Peugeot	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Porsche	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Proton	P0115	ECT sensor Brand	Powertrain
Saab	P0115	Engine Coolant Temperature Sensor 1 Circuit Brand	Powertrain
MG (SAIC)	P0115	Engine Coolant Temperature Sensor 1 Circuit Brand	Powertrain
Smart	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Sprinter	P0115	ENV_ _Datum3 Brand	Powertrain
Subaru	P0115	Engine Coolant Temperature Circuit SAE	Powertrain
Suzuki	P0115	Engine coolant temperature circuit malfunction Brand	Powertrain
SWM Motor	P0115	coolant temperature sensor circuit failure Brand	Powertrain
Tata	P0115	Engine Coolant Temperature Circuit Brand	Powertrain
Toyota	P0115	Coolant temperature sensor signal changes not as expected Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of P0115 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P011500	Supply voltage fault to coolant temperature sensor Brand	Powertrain

6Related codes

Browse Pxxx codes or P011xx codes.