• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Water in Fuel Indicator Control | P2266 | -- | -- | -- |
A sensor mounted in the bottom of the fuel filter housing is use to detect water in the fuel. The water in fuel (WIF) sensor has an indicator control circuit and a low reference circuit. The engine control module (ECM) monitors the voltage to the WIF sensor. If the voltage is incorrect, the ECM will illuminate the WIF lamp and set the appropriate DTC.
• | The engine is running. |
• | This diagnostic runs continuously. |
• | The engine is running. |
• | The WIF sensor voltage is less than 0.20 volt for more than 1 second. |
DTC P2266 is a Type C DTC.
DTC P2266 is a Type C DTC.
The water in the fuel will not set this DTC, but the water in fuel lamp will illuminate if this DTC sets.
Control Module References for scan tool information
⇒ | If this DTC resets, test the indictor control circuit for high resistance or a short to ground. |
⇒ | If the DTC does not reset, refer to Water in Fuel Indicator Malfunction. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.