HIGH-VOLTAGE ELECTRICAL DISCONNECT FEATURES
The following list describes certain features that have been incorporated into the
Hybrid vehicles that allow for either simple or automatic shutoff of the high-voltage
electrical systems.
• High-Voltage Fuse — In the event of a high-current short circuit,
the high-voltage fuse will open, disabling the high-voltage system.
• High-Voltage Interlock Circuit — Whenever a high-voltage connector
is disconnected, the high-voltage interlock circuit opens and disables
the high-voltage system.
• Ignition Key in OFF Position — Any time the ignition lock cylinder is in
the OFF position, the high-voltage system is disabled.
• High-Voltage Service Disconnect — Whenever the high-voltage
service disconnect (located behind the rear seat) is removed, the
high-voltage system is disabled. For additional information, refer to
Page 9 in this manual.
• Thermal Sensors — In the event the ignition key is left in the ON position
and the high-voltage battery temperature exceeds 60°C (140°F),
thermal sensors located near the high-voltage battery will automatically
disable the high-voltage battery.
FCS-14265-10
5
2010 Fusion Hybrid, Milan Hybrid Emergency Response Guide, 02/2009
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