i hope - Supply point to the Cricuit is shorted to gnd
P0118 means: Engine Coolant Temperature Circuit HighP0118 means: Engine Coolant Temperature Circuit High
2000 Volkswagen Beetle L4-1781cc 1.8LFig. 2 Engine Coolant Temperature (ECT) sensorThe engine coolant temperature sensor is installed in the coolant return (arrow), located between the cylinder head and the radiator
Trouble code P0117 means: Engine coolant temperature circuit low input
engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty.
The engine coolant temperature sensor is usually on the front of the engine. The coolant temperature sensor will be in the vicinity of the thermostat housing.
Engine Coolant Temperature Circuit Range/Performance issue... This DTC is usually cause by a faulty coolant senor, but can also mean that your engine's thermostat is malfunctioning.
Engine coolant temperature sensor circuit short to ground
Trouble code P0117 means: Engine coolant temperature circuit low input
Trouble code P0117 means: Engine Coolant Temperature Circuit Low Input
Engine Coolant Temperature Circuit High Input The engine coolant temperature (ECT) sensor is a thermistor screwed into a coolant passage in the cylinder head. Sensor resistance is high when coolant temperature is low and resistance drops when coolant temperature increases. The powertrain control module (PCM) provides a 5 volt reference and a ground to the sensor. The PCM monitors voltage drop to determine coolant temperature. If the ECT reads less than freezing temp. when engine has been running for more than a few minutes, the PCM determines a circuit fault and sets this code. Or if the PCM determines the sensor resistance is out of specs, this code is set.
Fill the reservoir with G12 VW coolant only and it will go into the engine.
Most likely culprit is the ECT (engine coolant temperature) sensor. It can give this code and still not read high on the temp guage.