Vehicle: All Technical Service Bulletins
Restraints - Enabling And Replacing New OC3 Seat Mat
SI B65 10 13
Audio, Navigation, Monitors, Alarms, SRS
March 2013
Technical Service
SUBJECT
Enabling and Replacing New 0C3 Seat Mat
MODEL
E82
E88
E90
E91
E92
E93
SITUATION
The replacement 0C3 seat mat (front passenger seat occupancy) will not enable when following ISTA Repair Instruction REP 65 77 6O4,
"Replacing sensor mat (OC3 mat) for passenger seat occupancy detector.
CAUSE
When the new mat is installed in the vehicle, too much pre-load pressure will prevent the mat from being enabled. ISTA/P WILL NOT enable the
new part, and will cause permanent damage to it.
CORRECTION
In order to avoid excessive down time for repair or damage to the new OC3 seat mat, the repair instruction steps must be revised as shown in the
procedure below:
1. Connect the new 0C3 seat mat to the vehicle (without the seat cover fitted). Connect the vehicle to ISTA/P. Select the MRS5 (Multiple Restraint System) from the control unit list for Programming and coding and finish programming/coding the vehicle. The final report should indicate no faults related to MR55.
2. Afier enabling with ISTA/P is finished, install the seat cover and replacement seat mat. Follow ISTA Repair Instruction "Operation for replacing the 0C3 mat in conjunction with padding and seat cover is described in: remove padding for front seat." Connect the vehicle to ISTA to clear the fault memory if necessary.
3. If there is still a problem after the procedure is completed, submit a PuMA case with the title: "OC3 seat mat will not enable" for further
assistance.
WARRANTY INFORMATION
Not applicable.
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