Water In Fuel Sensor
WARNING: This page is about a different variant/trim than selected.
The Water In Fuel (WIF) sensor is located in the base of the fuel filter and is hardwired to the Powertrain Control Module (PCM). The sensor operates on the principle of differing resistance values to the transmission of current through water and fuel.
When the volume of water in the fuel reaches 85 ml (2.87 US fl oz) or more, the sensor value is sensed by the PCM. The PCM transmits a message on the FlexRay to the Body Control Module/Gateway Module (BCM/GWM). The BCM/GWM passes the message via the High Speed (HS) Controller Area Network (CAN) Human Machine Interface (HMI) systems bus to the Instrument Cluster (IC). The IC then displays a message 'WATER IN FUEL VISIT DEALER' in the IC message center.