Pyrotechnic Battery Isolator Component Location Overview

Pyrotechnic Battery Isolator Component Location Overview






• Vehicles with the battery in luggage compartment are 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 cut-off 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 the negative battery terminal. Refer to => [ Battery, Disconnecting and Connecting ] Service and Repair.

• Refer to => [ Pyrotechnic Battery Isolator Safety Precautions ] Service Precautions.

• Refer to => [ Pyrotechnic Battery Isolator Disposal ] Procedures.

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.

1 Connector on Pyrotechnic Battery Cut-Out
2 Nut (collar nut) for B+ Wire and Pyrotechnic Battery Cut-Out in Main Fuse Box (15 Nm)
3 B+ Wire
4 Pyrotechnic Battery Cut-Out
5 Nut (Self-Locking) for Pyrotechnic Battery Cut-Out in Main Fuse Box (15 Nm)

• In the event the battery cut-out has deployed, pyrotechnic battery cut-out must be replaced.