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Inertia Fuel Shutoff Switch: Description and Operation






INERTIA SWITCHES
There is a rear inertia switch in addition to a front inertia switch. Either one switch tripping results in a no start and a no crank condition.

- The front inertia switch cuts off both fuel and high voltage.
- The rear inertia switch cuts off power to the high voltage contactors located inside the battery case. In response to the loss of power at the contactors, the PCM shuts off fuel indirectly.
- The additional rear inertia switch disconnects faster which provides an extra margin of safety.