SRS - Warning Lamp ON/DTC B1863/B1864 Set
Date: July 22, 2004Order No.: P-B-91.29/56b
Supersedes: P-B-91.29/56a dated Sept. 29, 2003
Group: 91
Revision: Procedure Updated - Return of connectors no longer necessary
SUBJECT:
Model 230, Model Year 2003
SRS Warning Lamp Illuminated
If you encounter instances in the above model where the SRS warning lamp is illuminated and a fault code of B1863 (Belt Pretensioner Driver's Side Resistance Too High), and/or B1864 (Belt Pretensioner Passenger's Side Resistance Too High) is stored in the Airbag Control Module, perform the following procedure.
Note:
Both driver's and passenger's ETR (Emergency Tensioning Retractor) connectors need to be replaced. The following procedure describes the driver's side. In order to replace the passenger side connector X28/9, the exact procedure must be followed except that the passenger side seat will need removal.
1) Remove the driver's seat and tip rearwards (Figure 1). Reference WIS document AR91.10-P-1000R.
2) Ensure that both batteries (Starter and Consumer) are disconnected. Reference WIS document AR54.10-P-0003R.
3) Locate the yellow ETR electrical connector X28/8 driver side or X28/9 passenger side (Figure 2).
4) Detach ETR wire harness from seat bracket.
5) Unplug ETR connectors.
6) Cut old connectors from harness one at a time (approximately 20 mm from end of connector).
Note:
When installing new connectors observe the individual wire colors in order to maintain correct connector orientation.
7) Solder new connectors onto harness using solder joint connectors P/N A 002 546 13 41 (Figure 3). Reference WIS document AR00.19-P-0100-09A.
8) Wrap repaired harness with fabric tape (Figure 4).
9) Reattach connector to the seat bracket and reposition wire harness (Figure 5).
10) Reconnect both batteries (Starter and Consumer).
11) Reinstall front seat.
12) Using STAR Diagnosis clear diagnostic fault codes and perform a Short Test.
13) Verify that no fault codes are present.
14) Renormalize seats and remaining electrical systems. Reference WIS document AR54.10-P-003R.
Parts Information
Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair.
In Case of Warranty