G 55K AMG (463.271) V8-5.5L SC (113.993) (2007)
Air Bag Harness: Customer Interest
Air Bag System - SRS Lamp ON/DTC's B1859/B1860
Date: March 8, 2006
Order No.: T-B-91.60/104
Supersedes:
Group: 91
SUBJECT:
Model 463.246/249/271, As of VIN X156043 up to X161665
SRS Light Illuminated
If you receive customer reports in the above model vehicles of the SRS light being illuminated accompanied by either of the diagnostic fault codes listed
below, perform the following repair procedure. Replacement of the contact spiral is not necessary.
Fault Codes:
DTC B1859 - the resistance value in the ignition circuit containing component R12/13 is too high
DTC B1860 - the resistance value in the ignition circuit containing component R12/14 is too high
Procedure:
1.
Disconnect battery ground cable.
Note:
The battery ground cable must be disconnected. If this step is omitted, other faults may be introduced into the vehicle when cutting the SCM
harness.
2.
Remove airbag unit on steering wheel.
3.
Remove steering wheel.
4.
Remove the steering column module (SCM).
5.
Remove driver's side instrument panel bottom section.