Battery Interrupt Igniter, Removing And Installing: Removing
Risk of injury due to involuntary deployment.
- Pay attention to the safety precautions when working with pyrotechnic components. Refer to SAFETY PRECAUTIONS WHEN WORKING WITH PYROTECHNIC COMPONENTS .
- Observe the disposal regulations for pyrotechnic components. Refer to AIRBAG, BELT TENSIONER AND BATTERY CUT-OUT UNITS, STORING, TRANSPORTING AND DISPOSING (PYROTECHNIC COMPONENTS) .
If the Airbag Indicator Lamp -K75- turns on after a collision, check whether crash data is stored using the Vehicle Diagnostic Tester. If this is the case, check if the malfunction >>Resistance too high<< for the Battery Interrupt Igniter -N253- is stored in the DTC memory. If this is the case, the Battery Interrupt Igniter -N253- must be replaced.
The Battery Interrupt Igniter -N253- interrupts the electrical circuit each time an airbag is deployed. The Battery Interrupt Igniter -N253- must be replaced after a deployment.
The Battery Interrupt Igniter -N253- is only available as a replacement part with the main fuse panel on the battery.
-- Switch the ignition on.
-- Disconnect the battery ground cable with the ignition turned on. Refer to BATTERY, DISCONNECTING AND CONNECTING .
-- Loosen the nut -1- and remove the battery positive cable terminal with Fuse Panel A -SA- from the battery terminal.
-- Remove the Fuse Panel A -SA- upward.
-- Release the spring -3- and open the flap -2- over Fuse Panel A -SA- upward in direction of -arrow-.
Before handling pyrotechnic components (for example, disconnecting the connector), the person handling it must "discharge static electricity". For example, this can be done by briefly touching the door striker.
-- Remove the nuts -2 and 3-.
-- Remove the battery interrupt igniter -4-.
-- Open the connector lock -5- using a small screwdriver and disconnect the connector -1-.