P0494 - Fan Speed Low
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2022 Ford F-550 Super Duty, 2022 Ford F-450 Super Duty, 2022 Ford F-350 Super Duty, 2022 Ford F-250 Super Duty, and 2021 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION P0494 - FAN SPEED LOW
| Description: This DTC sets if the indicated fan speed is lower than the calibrated value during the key ON, engine running (KOER) self-test. | |||
Possible Causes:
|
|||
| Diagnostic Aids: Visually inspect the cooling fan clutch for damage or obstruction. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST AH . | ||