Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
NOTE:
After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST procedures to ensure all electronic engine control systems are working properly and DTCs are no longer present.
NOTE:
Water In Fuel (WIF) sensor may also be referred to as fuel heater.
Perform this test when directed by QUICK TEST. This test is only intended to diagnose the following components and circuits:
- WIF Sensor Output To Powertrain Control Module (PCM)
- WIF Sensor Wiring Harness Circuits
- PCM
Water In Fuel (WIF) sensor is used to detect water in fuel system and is located in fuel filter housing. WIF sensor is monitored by PCM. If PCM detects water for more than 5 seconds, it will set a Continuous Memory DTC P1140 and turn on WATER IN FUEL Indicator Light (WIFIL).