The water in fuel (WIF) sensor is located in the bottom of the fuel filter housing. The engine control module (ECM) monitors the WIF sensor signal circuit for a predetermined voltage.

The ECM detects an incorrect WIF signal for more than 3 seconds.

DTC P2264 is a Type C DTC.

DTC P2264 is a Type C DTC.

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

1. Start the engine, observe the DTC information with a scan tool. DTC P2264 should not set.
2. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List.

1. Ignition OFF, and the MAIN fuse removed, disconnect the harness connector at the WIF sensor.
2. Test for less than 5 ohms of resistance between the ground circuit terminal 2 and ground.

⇒	If greater than the specified range, repair the open/high resistance in the ground circuit.

3. Install the MAIN fuse. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 3 and ground.

⇒	If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

4. Verify the scan tool WIF sensor parameter displays No Water.

⇒	If the parameter displays Water, test the signal circuit for a short to ground. If the circuits/connections test normal, replace the ECM.

Important: If the fuse in the jumper wire opens, the signal circuit is shorted to a voltage and the sensor may be damaged.

5. Install a 1A fused jumper wire between the signal circuit terminal 1 and ground. Verify the scan tool WIF sensor parameter displays Water.

⇒	If the parameter displays No Water, test the signal circuit for a short to voltage, or an open/high resistance. If the circuit tests normal, replace the ECM.

6. If all circuits/connections test normal, replace the WIF sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.