Ground points

NOTE:

Ground point 5 = Electronics ground.
Ground point 13 = Battery ground.
Ground point 14 = Body/engine ground.
Important ground points for ABS and ABS/TC: Ground point 2 (on the left in the front luggage compartment) and ground point 5 (electronics ground).

Fig 1: Identifying Important Ground Points For ABS And ABS/TC
Courtesy of PORSCHE OF NORTH AMERICA, INC.