Ford
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Fan Secondary Low With Low Fan On Conditions
Cause:
    Key on or engine running, low speed cooling fan enabled, then the PCM detected the fan secondary circuit was low (with the low speed cooling fan on).

Subaru
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine coolant blower motor relay 1 - voltage high
Cause:
    Wiring, blower motor relay, ECM