FCS-15129-12 2012 Fusion MKZ Hybrid Emergency Response Guide 08/2011
4
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 shut off of the high-voltage electrical
systems.
• High-Voltage Fuse — In the event of a high-voltage 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 the 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 8 in this manual.
• Thermal Sensors — In the event that the ignition key is left in the ON position,
this may cause the high-voltage battery temperature to exceeds 60°C
(140°F); if this temperature is reached, the thermal sensors located near the
high-voltage battery will automatically disable the high-voltage battery.
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