Safety Circuit Breaker: Description and Operation

Pyrotechnic Battery Isolator

CAUTION:
- Vehicles with battery in luggage compartment is equipped with a battery isolator to increase crash safety. In the event of a collision, the airbag control module triggers a separation, which disrupts the power supply wiring to the starter. The battery cutoff takes place pyrotechnically through a very small explosive charge. To prevent accidentally triggering a separation when working on the battery or battery cut-off, you must first disconnect negative battery terminal.
- Observe safety precautions when working on battery isolation system.
- Observe notes for disposal of battery isolator units.

Depending on equipment, the pyrotechnic battery isolator is installed in conjunction with starter battery in luggage compartment and is integrated into the main fuse box. Main fuse box is located in the luggage compartment, left side above the battery.