Diagnostic Instructions
Circuit/System Description
If there is water in the fuel system, the water in fuel sensor switch will close and produce a low voltage on the signal circuit. When the instrument panel cluster (IPC) detects a low signal from the water in fuel sensor the IPC will then illuminate the
WATER IN FUEL indicator in the driver information center (DIC).
Reference Information
Schematic Reference
Connector End View Reference
Component Connector End Views
Description and Operation
Instrument Cluster Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the water in fuel sensor.
- Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit terminal B and ground.
⇒ | If greater than 1.0 ohm, test the ground circuit for an open/high resistance. |
- Install a 3-amp fused jumper wire between the signal circuit terminal A and ground. Verify the scan tool Water In Fuel Sensor parameter is Water.
⇒ | If not Water, test the signal circuit of the water in fuel sensor for a short to voltage or an open/high resistance. If the circuit tests normal, replace the DIC. |
- If all circuits test normal, test or replace the water in fuel sensor
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.