Jump to content
Looking for Staff Members

P2266 WATER IN FUEL (WIF) SENSOR VOLTAGE TOO LOW

When Monitored and Set Condition:

When Monitored: Ignition on.
Set Condition: Low voltage detected at the WIF signal circuit at the ECM.

POSSIBLE CAUSES

  • OTHER DTC'S PRESENT
  • WATER IN FUEL
  • ECM
  • INTERMITTENT CONDITION

DIAGNOSTIC PROCEDURE

NOTE: Refer to VERIFICATION TESTS for appropriate verification test procedures.

  1. With the DRBIII®, read DTCs. Do you have any additional water in fuel DTCs?
    Yes --> Repair other Water in fuel sensor DTCs first. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
    No --> Go To 2
  2. Using the service publications as a guide, drain the water in fuel separator. Did the DTC become inactive after draining the water in fuel separator?
    Yes --> Clear DTC, repair complete. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
    No --> Go To 3
  3. Disconnect the WIF sensor harness connector.
    NOTE: Check connectors - Clean/repair as necessary.
    Using the DRBIII®, monitor for DTCs while connecting a jumper wire between the (G123) signal circuit of the water in fuel sensor and battery voltage. Did the water in fuel light go out?
    Yes --> Refer to the SYMPTOM: INTERMITTENT CONDITION Symptom (Diagnostic Procedure). Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
    No --> Replace and program the ECM in accordance with the Service Information. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).

User Feedback

There are no reviews to display.