Mercedes Benz Truck R 320 BLUETEC Technical LI91-60_P-047191 Date: 090630
Mercedes Benz Truck R 320 BLUETEC
Page 327
Restraints - Can't Calibrate Weight Sensing Seat (WSS)
UNABLE TO CALIBRATE WSS
Topic Number LI91.60-P-047191
Version 1
Design Group 91.60 Airbag
Date 06-30-2009
Validity New tolerances in Star Diagnosis only affects the WSS TRW Bizerba 1 control unit used on 164/251 and 211/219 vehicles.
Reason for change
Reason for block
Complaint:
Unable to calibrate weight sensing seat (WSS).
Cause:
In DAS 04/09 tolerances were added to calibration procedure. (+/- 8kg) This may reject the attempt at calibrating the weight sensing seat due to the
weight being out of tolerance.
Remedy:
To repair vehicle, follow either of the procedures below.
Remedy # 1: Backdate Star Diagnosis to 03/09.
Remedy # 2: Request a password and instructions from the TAC hotline or Helpdesk.
Symptoms
Control unit/fault code
Validity
Mercedes Benz Truck R 320 BLUETEC
Page 328
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Mercedes Benz Truck R 320 BLUETEC
Page 329
Mercedes Benz Truck R 320 BLUETEC
Page 327
Restraints - Can't Calibrate Weight Sensing Seat (WSS)
UNABLE TO CALIBRATE WSS
Topic Number LI91.60-P-047191
Version 1
Design Group 91.60 Airbag
Date 06-30-2009
Validity New tolerances in Star Diagnosis only affects the WSS TRW Bizerba 1 control unit used on 164/251 and 211/219 vehicles.
Reason for change
Reason for block
Complaint:
Unable to calibrate weight sensing seat (WSS).
Cause:
In DAS 04/09 tolerances were added to calibration procedure. (+/- 8kg) This may reject the attempt at calibrating the weight sensing seat due to the
weight being out of tolerance.
Remedy:
To repair vehicle, follow either of the procedures below.
Remedy # 1: Backdate Star Diagnosis to 03/09.
Remedy # 2: Request a password and instructions from the TAC hotline or Helpdesk.
Symptoms
Control unit/fault code
Validity
Mercedes Benz Truck R 320 BLUETEC
Page 328
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Mercedes Benz Truck R 320 BLUETEC
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