Battery Interrupt Igniter N253

Battery Interrupt Igniter N253

Removing

• Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and Testing Procedures ] Service Precautions.

• Follow all regulations when disposing of pyrotechnic components. Refer to => [ Airbag, Belt Tensioner and Battery Cut-Out Units, Storage, Transporting and Disposal ] Airbag, Belt Tensioner and Battery Cut-Out Units, Storage, Transporting and Disposal.

• If the airbag indicator lamp (K75) illuminates after a collision, check for stored collision data using the vehicle diagnostic tester. If data is present, check if the fault resistance too high (error 001) is stored in the DTC memory for the battery interrupt igniter (N253). If it is, replace the battery interrupt igniter (N253).

• The battery interrupt igniter (N253) interrupts the circuit when an airbag deploys. Always replace the battery interrupt igniter (N253) after an airbag deploys.

- Turn off the ignition and remove the key.

- Remove cover from luggage compartment floor.

- Disconnect the battery ground (GND) strap.

- Disconnect battery positive strap - 1 - and remove it with auxiliary fuse panel cover.






- Remove nuts - 2 -.

- Remove Battery Interrupt Igniter (N253) - 5 -.

• Before handling pyrotechnical components (for example, disconnecting the connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.

- Release electrical connector - 3 - on Battery Interrupt Igniter (N253) using a screwdriver - 4 -.

Installation

Install in reverse order of removal. Note the following:

• Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and Testing Procedures ] Service Precautions.

• Before handling pyrotechnical components (for example, connecting electrical connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.

• Make sure the connectors are installed all the way in and are secure.

- Switch on ignition.

Connect the battery with the ignition switched on. Pyrotechnic components could deploy after connecting the battery if they were not repaired correctly. Individuals must not be inside the vehicle when connecting the battery.

- Connect battery ground cable with ignition switched on.

- Finally, check the DTC memory for the airbag control module using the vehicle diagnostic tester and perform the required work steps if necessary.

For the correct tightening specifications; refer to => [ Battery Interrupt Igniter N253 Assembly Overview ] Battery Interrupt Igniter N253 Assembly Overview.