SL 63 AMG Power and Ground Distribution: Aftermarket Tampering Malfunctions
Power and Ground Distribution: Technical Service Bulletins
Electrical - Aftermarket Tampering Malfunctions
Date: October 26, 2010
Order No.: S-B-54.21/234a
Supersedes: S-B-54.21/234, dated July 27, 2010
Group: 54
Revision History
Revision
Date
Purpose
a
10/22/10
Additional devices and pictures added.
-
7/27/10
Initial issue
SUBJECT: MY- All, Models All
Malfunctions Due to Other-Make Installations
Recent attempts manipulating vehicle mileage through the use of third party electronic devices installed on Mercedes-Benz vehicles are being reported.
There are several CAN manipulation devices on the market. Be particularly aware of two devices which are installed in tandem with the instrument
cluster or the EIS (Figure 1) and a circuit board which can be installed directly within the EIS (Figure 2).
If vehicle electronics malfunction, control units display implausible mileage readings, or malfunctions lack corresponding default entries; check the