Coding Occupant Detection Control Unit
NOTIFICATION
Voltage drop
- Irreparable damage to control unit
- Damage to control unit
- Fault entries in the control unit
- Control unit programming/coding is aborted
- Malfunctions in the control unit, even during programming
→ Switch off ignition before disconnecting the control unit.
→ Make sure that the power supply is not interrupted during programming/coding.
→ Connect the battery charger with at least > current 90 A to the vehicle battery.
Information
If components of the seat occupancy detection system (only on vehicles for C02 - USA and C36 - Canada) must be replaced, the padding with affixed mat for the seat occupancy detection system -1- and the control unit for seat occupancy detection -2- must always be replaced as a complete unit since they are paired during manufacture.
Spare parts are grouped in a repair kit .
Contents of repair kit for seat occupancy detection system
| -1- | Padding with affixed mat for seat occupancy detection system |
| -2- | Control unit for seat occupancy detection |
A mixed installation is not permitted .
Do not detach the mat for the seat occupancy detection system from the foam part.
Information
The PIWIS Tester instructions take precedence since the description may be different with later Tester releases.
The procedure described here has been structured in general terms. Different text or additional information may appear on the PIWIS Tester .
Switch off ignition. Disconnect charger from the power connection. Disconnect the battery.
> 2X00IN WORK INSTRUCTIONS AFTER DISCONNECTING THE BATTERY
Wait for 1 minute before replacing the occupant detection control unit.
> 696819 REMOVING AND INSTALLING OCCUPANT DETECTION CONTROL UNIT
Connect the battery. Switch on the charger.
Connect the Tester to the vehicle and start it. Switch on ignition.
Select the vehicle type if required.
Select Airbag control unit in the overview . Press F12 to continue. The message "Create Vehicle Analysis Log (VAL)?" appears. Press F11 to continue.
Maintenance/repairs must now be selected.
Teach seat occupancy detection must now be selected. Press F12 to continue.
Read the warnings and instructions displayed on the Tester. Press F12 to continue and then press F8 to start.
Execute seat occupancy detection in accordance with menu guidance. Press F12 to continue.
Switch off ignition, wait 4 seconds and then switch ignition back on again.
Read out fault memory and erase it if necessary.
Switch ignition off and then on again. Check that the airbag warning light in the instrument cluster comes on and then goes off again after a few seconds.
Carry out work instruction after disconnecting the battery.