Battery Interrupt Igniter (N253)

Battery Interrupt Igniter (N253)

• Usage and safety information for working on Battery Interrupt Igniter, refer to => [ Battery Interrupt Igniter (N253) Usage and Safety Information ] Battery Interrupt Igniter (N253) Usage and Safety Information.

• Battery Interrupt Igniter disposal, refer to => [ Battery Interrupt Igniter (N253), Disposal ] Description and Operation.

• Battery Interrupt Igniter components and component locations

• Torque specifications: main fuse box, refer to => [ Main Fuse Box Tightening Specifications ] Main Fuse Box Tightening Specifications.

General Description

• The Battery Interrupt Igniter is installed when the battery is installed in the vehicle interior or luggage compartment.

• This design results in longer routing of the battery wire to the starter, which results in an increased risk of burning due to wiring damage in the event of an accident.

• In the case of a crash with airbag deployment, the positive connection from the battery to the starter is pyrotechnically disconnected.

• However, the electrical system voltage supply is maintained for important safety functions such as hazard lights and lighting.

• The battery interrupt igniter is integrated in the main fuse box. It is located in the luggage compartment on the left starter battery.

Battery Interrupt Igniter On Main Fuse Box






1 Connector on Battery Interrupt Igniter
2 B+ wire and Battery Interrupt Igniter securing nut (collar nut), in main fuse box
3 B+ wire
4 Battery Interrupt Igniter
5 Battery Interrupt Igniter securing nut (self-locking) in main fuse box