DTC 11: Control Unit

Check ABS control unit connectors and wiring harness for damage. See appropriate WIRING DIAGRAM . Ensure a good ground exists at ABS control unit ground terminals No. 28 and 29. See Fig 1. If connectors, wiring harness and ABS control unit ground terminals are okay, replace ABS control unit.

Fig 1: Identifying Control Unit Terminals

Courtesy of PORSCHE OF NORTH OF AMERICA, INC.