Restraints - Air Bag Lamp ON/Multiple Codes Set
SI B 65 30 08Audio, Navigation, Monitors, Alarms, SRS
February 2009
Technical Service
SUBJECT
Airbag Warning Lamp is illuminated: FCs 93A9, 93AA, 93AC, 93AD
MODEL
E82, E88 (1 Series)
E90, E92, E93 (3 Series)
Vehicles produced March 31, 2008 to July 30, 2008
SITUATION
The Airbag Warning Lamp is illuminated and one or more of the following fault codes are stored:
93A9: Driver's seat belt tensioner - Resistance too high
93AA: Passenger's seat belt tensioner - Resistance too high
93AC: Side airbag, front left - Resistance too high
93AD: Side airbag, front right - Resistance too high
CAUSE
Bad wiring crimp at the under-seat plug connector
CORRECTION
In the case of a customer complaint, perform a wiring repair on the under-seat connector on both the driver's and passenger's side.
PROCEDURE
Follow airbag safety instructions RA 72 00 ...
1. Unlock and disconnect plug connectors (1) and (2) under the seat.
2. Cut the cable tie (1) and remove the connector housing (2).
Note:
Be sure to replace the cable tie when the repair operation is completed.
3. Remove the fabric tape (1) and push back the protective sleeve.
4. Using the airbag repair cable, select the end with the green rubber seals (1)
5. Cut each twisted wire pair to length A = 11cm.
6. Remove the wires (1) and (2) from the connector locations 18 and 19 (twisted pair wires). (Pin 19 is shown already removed.)
7. Cut the wires at a point B = 11 cm from the end of the terminals.
8. Strip 3mm of insulation from each of the wire ends, then connect each of the cut wires of the existing harness (1) to the wires from the airbag repair cable (2) using a butt connector (3), and then seal the splice with heat shrink (4).
Double crimp (wire crimp and insulation crimp) each wire to the butt connector using the universal crimping die P/N 61 4 328 (refer to SI B04 32 06).
Note:
As each splice is completed, for ease of reassembly, mark the repair cable wire to identify its connector location.
9. With the heat shrink positioned over the butt connector, use a heat gun to seal the splice.
IMPORTANT:
Use caution; do not burn the shrink tubing or the harness insulation.
10. Reinstall the wires into their correct locations in the plug connector; if possible, maintain the wires as twisted pairs. For reference, use the chart shown:
11. Remove the wires (1) and (2) from the connector locations 16 and 17 (twisted pair wires). (Pin 17 is shown already removed.)
12. Cut the wires at a point B = 11 cm from the end of the terminals.
13. Repeat steps 8-10.
14. Retape the harness, using fabric tape. Pull the protective sleeve back into position and tape the end for a neat repair.
15. Reinstall the connector housing and retain the harness with the cable tie (see step 2).
16. Repeat the repair procedure for the seat harness on the other side of the vehicle.
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty or the Certified Pre-Owned program.
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