Acceleration/Deceleration Sensor: Service and Repair
Replacing combination sensor
Preliminary work
Information:
The combination sensor is located under the center console.
The functions listed below are integrated into the combination sensor:
^ Rate-of-turn sensor
^ Lateral acceleration sensor
^ Axial acceleration sensor
Overview of combination sensor
Combination sensor under the center console (cup holder)
1. Disconnect battery.
2. Remove center console cover and cup holder.
3. Remove triggering unit for airbag.
General warning notes
Warning notes
Warning:
Combination sensor not calibrated or calibrated incorrectly
^ Unexpected vehicle handling
^ Combination sensor does not function
^ Malfunction in combination sensor
-> After installing or replacing the combination sensor, calibrate it using the PIWIS Tester 9718.
-> Only perform calibration when the vehicle is positioned horizontally and the brake is not actuated.
Replacing combination sensor
Separate the cross bar of the carpet -arrow - Underneath is the combination sensor.
Separating carpet at combination sensor
First push on the combination sensor connector firmly (makes removal easier!). -arrow-. Lift connector lock and then remove connector!
Pulling off plug of combination sensor
Replace combination sensor. -> Tightening torque: 8 Nm (6 ftlb.)±1 Nm (±0.5 ftlb.)
Subsequent work
1. Install triggering unit for airbag.
2. Install center console cover.
3. Connect the battery.
Information:
After installation or replacement of combination sensor, calibrate vehicle.
^ Calibration must only be performed with the vehicle standing horizontally with the brakes off.
4. Calibrate combination sensor. To do this connect the Piwis tester: Select >>Vehicle Cayenne >>System PSM>>Actual values menu >>Security code (at end of list). Note the security code. Quit>> Actual values menu.
5. Select>> Calibration menu>> Enter security code. Calibrate>> Lateral acceleration sensor and Axial acceleration sensor in sequence using the menu.