Impact Sensor: Service and Repair
Removing And Installing Airbag Sensor
General warning notes
General warning notes for airbag
Preliminary work
Preliminary work for lock support sensor
Removing front apron.
Preliminary work for centre sensor
Remove front seat.
Preliminary work for wheel arch sensor
Remove rear side trim panel.
Removing airbag sensor
Removing sensor on lock support
NOTE:
- 6 sensors are used for the airbags in the Cayenne.
- The front two sensors are located on the lock support.
- The middle two sensors are located on the floorpan behind the front seats.
- The rear two sensors are located on the rear wheel housings.
ATTENTION: Danger of injury and damage to property as a result of incorrect handling of airbag sensors.
- Risk of confusing the front, middle and rear sensors, since they do not differ in appearance.
- Always observe the safety regulations for handling airbag units.
- Remove ignition key. Disconnect battery. Route or isolate ground strap so that all contact with a ground carrier (e.g. body, seat frame) is avoided.
- Before the connector is disconnected from the sensor, always wait for 1 minute before disconnecting the battery.
1. Push in lock -2- on plug for sensor -1-, until this perceptibly engages -arrow A-.
2. Release locking mechanism on the latch -2- -arrow B- and pull off plug from sensor -1- -arrow C-.
3. Unscrew the two fastening nuts -3- and remove the sensor.
Removing middle sensor
NOTE: Accessibility is limited. If the carpet is pulled back too far, it will tear at the edges.
1. Lift up the carpet towards the rear.
ATTENTION: Danger of injury and damage to property as a result of incorrect handling of airbag sensors.
- Risk of confusing the front, middle and rear sensors, since they do not differ in appearance.
- Always observe the safety regulations for handling airbag units.
- Remove ignition key. Disconnect battery. Route or isolate ground strap so that all contact with a ground carrier (e.g. body, seat frame) is avoided..
- Before the connector is disconnected from the sensor, always wait for 1 minute before disconnecting the battery.
2. Push in lock -2- on plug for sensor -1-, until this perceptibly engages -arrow A-.
3. Release locking mechanism on the latch -2- -arrow B- and pull off plug from sensor -1- -arrow C-.
4. Unscrew the two fastening screws -4- and remove the sensor.
Removing sensor on wheel housing
ATTENTION: Danger of injury and damage to property as a result of incorrect handling of airbag sensors.
- Risk of confusing the front, middle and rear sensors, since they do not differ in appearance.
- Always observe the safety regulations for handling airbag units.
- Remove ignition key. Disconnect battery. Route or isolate ground strap so that all contact with a ground carrier (e.g. body, seat frame) is avoided.
- Before the connector is disconnected from the sensor, always wait for 1 minute before disconnecting the battery.
1. Push in lock -2- on plug for sensor -1-, until this perceptibly engages -arrow A-.
2. Release locking mechanism on the latch -2- -arrow B- and pull off plug from sensor -1- -arrow C-.
3. Unscrew the two fastening screws -4- and remove the sensor.
Installing airbag sensor
Installing sensor on lock support
WARNING: Danger of injury caused by loose, safety-related bolts.
- Always replace fastening screws of the sensors after customer service and reworking.
- Never make alterations to the micro-encapsulated screws, which have a negative effect on the bond (e.g. using lubricant, loosening bolts and screwing them down again).
NOTE:
- 6 sensors are used for the airbags in the Cayenne.
- The front two sensors are located on the lock support.
- The middle two sensors are located on the floorpan behind the front seats.
- The rear two sensors are located on the rear wheel housings
- Make sure that the sensor is properly positioned.
1. Slide sensor onto the bolts on the lock support.
2. Screw on the fastening nuts -3- and tighten them. Tightening torque 6.5 ftlb.
3. Slide the connector onto the sensor until it clicks into place.
Installing middle sensor
WARNING: Danger of injury caused by loose, safety-related bolts.
- Always replace fastening screws of the sensors after customer service and reworking.
- Never make alterations to the micro-encapsulated screws, which have a negative effect on the bond (e.g. using lubricant, loosening bolts and screwing them down again).
NOTE: Make sure that the sensor is properly positioned.
1. Position sensor and screw onto the floorpan with the two fastening screws -4-. Tightening torque 6.5 ftlb.
2. Slide the connector onto the sensor until it clicks into place.
3. Fold carpet forwards.
Installing sensor on wheel housing
WARNING: Danger of injury caused by loose, safety-related bolts.
- Always replace fastening screws of the sensors after customer service and reworking.
- Never make alterations to the micro-encapsulated screws, which have a negative effect on the bond (e.g. using lubricant, loosening bolts and screwing them down again).
NOTE: Make sure that the sensor is properly positioned.
1. Position sensor and screw onto the wheel arch with the two fastening screws -4-. Tightening torque 6.5 ftlb.
2. Slide the connector onto the sensor until it clicks into place.
Subsequent work
Subsequent work for lock support sensor
1. Install front apron. Installing front spoiler.
2. Carry out work instruction after disconnecting the battery.
3. Read out the airbag fault memory with the Porsche System Tester.
Subsequent work on centre sensor
1. Install front seat.
2. Carry out work instruction after disconnecting the battery.
3. Read out the airbag fault memory with the Porsche System Tester.
Subsequent work for wheel arch sensor
1. Install rear side trim panel.
2. Carry out work instruction after disconnecting the battery.
3. Read out the airbag fault memory with the Porsche System Tester.