7013 Adapter cable
WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
0491154 127013 Adapter cable MW
NOTE:
(Adapter cable 25-pin) For checking/encoding B of electronic engine power control safety circuit - model series: E31 / engine: M70 [Discontinued]
Storage Location: H 102
Courtesy of BMW OF NORTH AMERICA, INC.