Pinpoint Test Ah: Cooling Fan
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Do not operate the engine with the hood open until the fan blade has been examined for possible cracks and separation. A damaged fan can separate during operation. Failure to follow this instruction may result in serious personal injury.
NOTE:
Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.
Refer to ELECTRONIC ENGINE CONTROLS - 3.0L DIESEL for schematic and connector information.
Normal Operation and Fault Conditions
Refer to the DTC Fault Trigger Conditions.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PCM P0480:00 | Fan 1 Control Circuit: No Sub Type Information | Sets when the PCM detects an open from the FCV circuit. Check the fan control variable circuit for an open. |
| PCM P0528:00 | Fan Speed Sensor Circuit No Signal: No Sub Type Information | Sets when the PCM detects the indicated fan speed is lower than the calibrated value during the KOER self-test. The PCM uses the fan speed sensor input to monitor the cooling fan clutch speed. Visually inspect the cooling fan clutch for damage or restriction. |
Possible Sources
- Mechanical binding
- Obstruction in the fan
- Fan speed sensor circuitry concern
- Fan speed sensor (8A616)
- Fan control relay
- Cooling fan (8600)
- Cooling fan clutch (8A616)
- PCM (12A650)